Commit Graph

311278 Commits

Author SHA1 Message Date
Fabio Estevam 14e1e9f5ca pinctrl: mxs: Use kfree to fix build error
commit 0bf7481 (pinctrl: pinctrl-mxs: Take care of frees if the kzalloc fails)
introduced the following build error:

drivers/pinctrl/pinctrl-mxs.c:140:3: error: implicit declaration of function 'free'

Use kfree function instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-06-17 19:44:44 +02:00
Lee Jones ea851f4f08 regulator: Change db8500-prcmu match names to reflect Device Tree
The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the db8500-prcum regulator driver so
this is true.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17 18:27:49 +01:00
Lee Jones f7f3f1ad9e regulator: Change ab8500 match names to reflect Device Tree
The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the ab8500 regulator driver so this
is true.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17 18:27:47 +01:00
Sangbeom Kim 9d88fc0b35 regulator: Fix the s5m8767a problem of the division by null
If ramp_delay is 0, delay value can be divided by zero.
This patch can fix the problem.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17 18:27:20 +01:00
Jean Delvare 1268a172cd hwmon: (coretemp) Drop needless initialization
The value is overridden a few lines later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-06-17 18:05:06 +02:00
Guenter Roeck 813441f16e hwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors
Tjmax values from Intel datasheets.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-06-17 18:05:06 +02:00
Guenter Roeck 41e58a1f2b hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs
Atom CPUs don't have a register to retrieve TjMax. Detection so far was
incomplete. Use the X86 model ID to improve it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-06-17 18:05:05 +02:00
Guenter Roeck 5592906f8b hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models
Document the Atom series D2000 and N2000 (Cedar Trail) as being supported.
List and set TjMax for those series.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-06-17 18:05:05 +02:00
Jean Delvare fcc14ac1a8 hwmon: (coretemp) Improve support of recent Atom CPU models
Document the new Atom series (Tunnel Creek and Medfield) as being
supported, and list TjMax for the Atom E600 series.

Also enable the Atom tjmax heuristic for these Atom CPU models.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>
2012-06-17 18:05:05 +02:00
Linus Torvalds fb09185a88 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Radeon is most of the work, one regression, one BUG fix in the new
  prime code, some fixes to init code to make streamout not lock up the
  hardware, and just some code to enable users to test HDMI audio on
  later hw (its off by default).

  Intel adds edp edid caching for some strange Dell Vostros that black
  screen on startup if keep reading their EDID, and a fix for a DP
  regression.

  Otherwise fix for via/sis and one to stop udl binding to multiple
  non-video usb."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: cache the EDID for eDP panels
  Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere"
  drm/i915: eDP aux needs vdd
  drm/i915: don't enumerate HDMID if an eDP panel is already active on the port
  drm/radeon: add support for STRMOUT_BASE_UPDATE on 7xx
  drm/radeon: add some additional 6xx/7xx/EG register init
  drm/radeon: enable HDMI on DCE5 (AKA NI excluding Aruba)
  drm sis: initialize object_idr
  drm via: initialize object_idr
  drm/radeon/prime: reserve/unreserve around pin
  drm/radeon: fix regression in dynpm due to multi-ring rework
  vga_switcheroo.h: fix pci_dev warning
  drm/udl: only bind to the video devices on the hub.
2012-06-17 01:44:41 -07:00
Ohad Ben-Cohen 6b03976288 remoteproc/omap: fix dev_err typo
For some reason one of the dev_err invocations is using a wrong
device so fix that.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: stable@vger.kernel.org
2012-06-17 10:31:03 +03:00
Linus Torvalds 41a328b95c ARM: SoC fixes
A bit larger set than usual, unfortunately -- I've been sitting on them
 longer than I meant to so it's really more like 2 -rc pull requests in
 one, volume-wise.
 
 Nearly everything is fixes for fallout from the merge window, or other
 fixes for bugs. The one exception is the highbank L2-enablement patch,
 but it was contained enough that I picked it up anyway:
 
 - i.MX fixes, mostly for clock and pinctrl changes
 - OMAP fixes, mostly PM-related
 - A patch to enable L2 on highbank
 - A couple of fixes for PXA, Kirkwood, Versatile
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A bit larger set than usual, unfortunately -- I've been sitting on
  them longer than I meant to so it's really more like 2 -rc pull
  requests in one, volume-wise.

  Nearly everything is fixes for fallout from the merge window, or other
  fixes for bugs.  The one exception is the highbank L2-enablement
  patch, but it was contained enough that I picked it up anyway:

   - i.MX fixes, mostly for clock and pinctrl changes
   - OMAP fixes, mostly PM-related
   - A patch to enable L2 on highbank
   - A couple of fixes for PXA, Kirkwood, Versatile"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (30 commits)
  ARM: Kirkwood: Fix clk problems modular ethernet driver
  arm: versatile: fix and enable PCI I/O space
  ARM: highbank: Add smc calls to enable/disable the L2
  ARM i.MX imx21ads: Fix overlapping static i/o mappings
  ARM: imx6: exit coherency when shutting down a cpu
  ARM: mx51: Add pinctrl_provide_dummies()
  ARM: mx31: Add pinctrl_provide_dummies()
  ARM: OMAP2+: Fix compile for CONFIG_TIDSPBRIDGE platform init code
  ARM: OMAP3: Fix omap3_l3_block_irq warning when CONFIG_BUG is not set
  ARM: OMAP: Fix MMC_OMAP build when only MMC_OMAP_HS is selected
  OMAP2+: UART: Add mechanism to probe uart pins and configure rx wakeup
  ARM: mmp: fix missing cascade_irq in irq handler
  ARM: dts: update memory size on brownstone
  ARM i.MX27 Visstrim M10: fix gpio handling.
  ARM i.MX53: Fix PLL4 base address
  ARM i.MX pllv2: make round_rate accurate
  ARM i.MX pllv2: use standard register set unconditionally
  ARM: OMAP: Fix lis3lv02d accelerometer to use gpio_to_irq
  ARM: imx: only call l2x0_init if it's available
  ARM: imx: only specify i2c device type once
  ...
2012-06-17 00:20:47 -07:00
Andrew Lunn 128789a829 ARM: Kirkwood: Fix clk problems modular ethernet driver
When the ethernet driver was built as a module, it would lock the
machine when loaded. At boot the ethernet clks are unused, so get
turned off.  Later, when the module is loaded, the probe function
would access the hardware before the clock was restarted, and the
machine would lock. It has also been determined that when the clk is
turned off, the interface forgets its MAC address, which for most
systems, is set by the boot loader.

When the machine setup file creates a platform device for the
interface, prepare and enable the clock for the interface. This will
ensure it is not turned off. However, if the setup file only
instantiates one platform device, the other will have its clk
disabled, thus maybe saving a little power.

Report-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-06-16 18:45:20 -07:00
Arnd Bergmann 9b0f7e3992 arm: versatile: fix and enable PCI I/O space
With commit 4d5fc58dbe (ARM: remove bunch of now unused
mach/io.h files), the I/O space setup was completely broken on
versatile. This patch fixes that and prepares for further
I/O space clean-up.

I/O space handling on the versatile platform is currently
broken in multiple ways. Most importantly, the ports do
not get mapped into the virtual address space at all.

Also, there is some amount of confusion between PCI I/O
space and other statically mapped MMIO registers in the
platform code:

* The __io_address() macro that is used to access the
  platform register maps to the same __io macro that gets
  used for I/O space.

* The IO_SPACE_LIMIT is set to a value that is much larger
  than the total available space.

* The I/O resource of the PCI bus is set to the physical
  address of the mapping, which is way outside of the
  actual I/O space limit as well as the address range that
  gets decoded by traditional PCI cards.

* No attempt is made to stay outside of the ISA port range
  that some device drivers try access.

* No resource gets requested as a child of ioport_resource,
  but an IORESOURCE_IO type mapping gets requested
  as a child of iomem_resource.

This patch attempts to correct all of the above. This makes
it possible to use virtio-pci based virtual devices as well
as actual PCI cards including those with legacy ISA port
ranges like VGA.

Some of the issues seem to be duplicated on other platforms.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[rob: update to 3.5-rc2 and io.h cleanup related changes]
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-06-16 18:41:35 -07:00
Olof Johansson 7dea9e7361 Merge branch 'fixes' of git://github.com/hzhuang1/linux into fixes
* 'fixes' of git://github.com/hzhuang1/linux:
  ARM: mmp: fix missing cascade_irq in irq handler
  ARM: dts: update memory size on brownstone
2012-06-16 18:36:52 -07:00
Linus Torvalds 485802a6c5 Linux 3.5-rc3 2012-06-16 17:25:17 -07:00
Linus Torvalds d865983292 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs compile warning fixes from Chris Mason.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: cast devid to unsigned long long for printk %llu
  Btrfs: init old_generation in get_old_root
2012-06-16 17:01:41 -07:00
Linus Torvalds c458175eb6 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile update from Chris Metcalf:
 "This one-line bug fix unbreaks glibc robust mutexes (among other
  things no doubt), from code merged in during the 3.5 merge window but
  which we had been running internally at Tilera for almost a year."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: fix bug in get_user() for 4-byte values
2012-06-16 17:00:15 -07:00
Linus Torvalds 88c144b12a fbdev fixes for 3.5
- two fixes for s3c-fb by Jingoo Han
   (including a fix for a potential division by zero)
 - a couple of randconfig fixes by Arnd Bergmann
 - a cleanup for bfin_adv7393fb by Emil Goode
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Merge tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:

 - two fixes for s3c-fb by Jingoo Han (including a fix for a potential
   division by zero)

 - a couple of randconfig fixes by Arnd Bergmann

 - a cleanup for bfin_adv7393fb by Emil Goode

* tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6:
  video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk
  video: s3c-fb: clear SHADOWCON register when clearing hardware window registers
  drivers/tosa: driver needs I2C and SPI to compile
  drivers/savagefb: use mdelay instead of udelay
  video/console: automatically select a font
  video/ili9320: do not mark exported functions __devexit
  drivers/video: use correct __devexit_p annotation
  video: bfin_adv7393fb: Convert to kstrtouint_from_user
2012-06-16 16:59:05 -07:00
Chris Metcalf 6699c8cda3 tile: fix bug in get_user() for 4-byte values
The definition of 32-bit values in the 64-bit tilegx architecture is that
they should be sign-extended regardless of whether they are considered
signed or unsigned by the compiler.  Accordingly, we need to use an
"ld4s" rather than "ld4u" to load and sign-extend for get_user().

This fixes glibc bug 14238 (see http://sourceware.org/bugzilla),
introduced during the 3.5 merge window.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-06-16 16:56:13 -04:00
Yuanhan Liu b56a39ac26 printk: return -EINVAL if the message len is bigger than the buf size
Just like what devkmsg_read() does, return -EINVAL if the message len is
bigger than the buf size, or it will trigger a segfault error.

Acked-by: Kay Sievers <kay@vrfy.org>
Acked-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-16 08:36:03 -07:00
Yuanhan Liu 4a77a5a06e printk: use mutex lock to stop syslog_seq from going wild
Although syslog_seq and log_next_seq stuff are protected by logbuf_lock
spin log, it's not enough. Say we have two processes A and B, and let
syslog_seq = N, while log_next_seq = N + 1, and the two processes both
come to syslog_print at almost the same time. And No matter which
process get the spin lock first, it will increase syslog_seq by one,
then release spin lock; thus later, another process increase syslog_seq
by one again. In this case, syslog_seq is bigger than syslog_next_seq.
And latter, it would make:
   wait_event_interruptiable(log_wait, syslog != log_next_seq)
don't wait any more even there is no new write comes. Thus it introduce
a infinite loop reading.

I can easily see this kind of issue by the following steps:
  # cat /proc/kmsg # at meantime, I don't kill rsyslog
                   # So they are the two processes.
  # xinit          # I added drm.debug=6 in the kernel parameter line,
                   # so that it will produce lots of message and let that
                   # issue happen

It's 100% reproducable on my side. And my disk will be filled up by
/var/log/messages in a quite short time.

So, introduce a mutex_lock to stop syslog_seq from going wild just like
what devkmsg_read() does. It does fix this issue as expected.

v2: use mutex_lock_interruptiable() instead (comments from Kay)

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-By: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-16 08:36:02 -07:00
Will Deacon 667d1b48bc ARM: 7425/1: extable: ensure fixup entries are 4-byte aligned
Fixup entries in the kernel exception tables should be 4-byte aligned
since we return directly to them when handling a faulting instruction in
the kernel.

This patch adds the missing align directives to the fixup entries.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-06-16 16:30:25 +01:00
Dave Airlie c4af5c4597 Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: cache the EDID for eDP panels
  Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere"
  drm/i915: eDP aux needs vdd
  drm/i915: don't enumerate HDMID if an eDP panel is already active on the port
2012-06-16 14:45:17 +01:00
Jesse Barnes d6f24d0fa6 drm/i915: cache the EDID for eDP panels
They aren't going anywhere, and probing on DDC can cause the panel to
blank briefly, so read them up front and cache them for later queries.

v2: fix potential NULL derefs in intel_dp_get_edid_modes and
    intel_dp_get_edid (Jani)
    copy full EDID length, including extension blocks (Takashi)
    free EDID on teardown (Takashi)
v3: malloc a new EDID buffer that's big enough for the memcpy (Chris)
v4: change handling of NULL EDIDs, just preserve the NULL behavior
    across detects and mode list fetches rather than trying to re-fetch
    the EDID (Chris)
v5: be glad that Chris is around to remind me to hit C-x C-s before
    committing.

References: https://bugs.freedesktop.org/show_bug.cgi?id=46856
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-16 15:39:02 +02:00
Daniel Vetter 6b4e0a93ff Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere"
This reverts commit 092945e11c.

This commit prevents a DP screen from properly training the link.
Oddly enough it works, once the machine has been warm-booted with an
older kernel.

According to DP docs this _should_ have been the right precharge time.
Also, the commit that originally introduces this was just general snb
DP enabling and didn't mention any specific reason for this special
value. Whatever, trust the reporter that this makes things worse and
let's just revert it.

v2: Less spelling fail.

Cc: Adam Jackson <ajax@redhat.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: "Wouter M. Koolen" <W.M.Koolen-Wijkstra@cwi.nl>
Buglink: https://lkml.org/lkml/2012/6/14/301
Cc: stable@vger.kernel.org (only for 3.4)
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-16 15:39:02 +02:00
Daniel Vetter 351cfc34db drm/i915: eDP aux needs vdd
The new oui probe has been missing these.

This issue has been introduce in

commit 0d19832853
Author: Adam Jackson <ajax@redhat.com>
Date:   Mon May 14 16:05:47 2012 -0400

    drm/i915/dp: Probe branch/sink OUIs

v2: Do the eDP vdd dance of simply not probing the OUI on eDP panels
as suggested by Chris Wilson.

v3: Fix up the error path fail - I suck.

Cc: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695
Tested-by: Yang Guang <guang.a.yang@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-16 15:39:02 +02:00
Jesse Barnes b708a1d5ea drm/i915: don't enumerate HDMID if an eDP panel is already active on the port
This prevents the HDMI detect functions from poking at an eDP
connected panel, which can lead to trouble.

[danvet: Note that we have some other reports of DP vs. HDMI fighting,
but the general case is a much bigger fish to fry.]

References: https://bugs.freedesktop.org/show_bug.cgi?id=42278
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-16 15:39:01 +02:00
Alex Deucher 7c77bf2a1a drm/radeon: add support for STRMOUT_BASE_UPDATE on 7xx
Required for streamout.  Bump drm minor.

Marek v2: fix pkt->count check

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 14:30:56 +01:00
Alex Deucher b866d1334b drm/radeon: add some additional 6xx/7xx/EG register init
- SMX_SAR_CTL0 needs to be programmed correctly to prevent
problems with memory exports in certain cases.
- VC_ENHANCE needs to be initialized on 6xx/7xx.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 14:30:47 +01:00
Rafał Miłecki 6b53a0507b drm/radeon: enable HDMI on DCE5 (AKA NI excluding Aruba)
After recent changes HDMI code is ready to be enabled on DCE5. This
patch just changes conditions to execute already present code on DCE5.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Christian König <christian.koenig@amd.com>
Tested-by: Andre Heider <a.heider@gmail.com>
Tested-by: Zoltán Böszörményi <zboszor@pr.hu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:21:19 +01:00
Márton Németh 648ccc7d35 drm sis: initialize object_idr
The filed object_idr of struct drm_sis_private was introduced with
commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=6de8a748881f1cd9d795454da2b6db616d5ca3d7 .

The idr_init(&dev->object_name_idr) is called instead of
idr_init(&dev_priv->object_idr) by mistake, leaving object_idr
uninitialized. Correct this.

This patch was not tested because of lack of hardware.

Signed-off-by: Márton Németh <nm127@freemail.hu>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:18:53 +01:00
Márton Németh ce020ea532 drm via: initialize object_idr
The field obejct_idr of struct drm_via_private was introduced with the
commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=77ee8f3825054f23b17e9c8f728f061defd86cdc .
In that patch idr_init(&dev->object_name_idr) was called instead of
idr_init(&dev_priv->object_idr) by mistake, leaving the dev_priv->object_idr
uninitialized. To be more exact, the object_idr buffer is filled with zeros
because of kzalloc(), but the dev_priv->object_idr.lock spinlock can cause
system freeze at lib/idr.c:move_to_free_list() when spin_lock_irqsave()
is called on this spinlock.

The patch was tested on Clevo D4J, model D410J laptop, on the following
hardware, without AGP kernel module loaded:

  # lspci -s 01:00.0 -n
  01:00.0 0300: 1106:3108 (rev 01)
  # lspci -s 01:00.0 -v
  01:00.0 VGA compatible controller: VIA Technologies, Inc. K8M800/K8N800/K8N800A [S3 UniChrome Pro] (rev 01) (prog-if 00 [VGA controller])
          Subsystem: CLEVO/KAPOK Computer Device 4702
          Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
          Memory at f0000000 (32-bit, prefetchable) [size=64M]
          Memory at d1000000 (32-bit, non-prefetchable) [size=16M]
          Expansion ROM at <unassigned> [disabled]
          Capabilities: [60] Power Management version 2
          Capabilities: [70] AGP version 3.0

Signed-off-by: Márton Németh <nm127@freemail.hu>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:18:38 +01:00
Dave Airlie 489797d510 drm/radeon/prime: reserve/unreserve around pin
I finally got to test this code a bit more and hit the ttm
no reserved assert, so add the reservations around the pinning.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:14:05 +01:00
Alex Deucher 0ec0612a80 drm/radeon: fix regression in dynpm due to multi-ring rework
Not all asics have all rings, so make sure the ring is ready
before attempting to check it in the dynpm work handler.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=43367

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:12:13 +01:00
Randy Dunlap f8fee8f5ac vga_switcheroo.h: fix pci_dev warning
Fix warnings on some architectures/configs (not on x86):

include/linux/vga_switcheroo.h:28:30: warning: 'struct pci_dev' declared inside parameter list [enabled by default]
include/linux/vga_switcheroo.h:28:30: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc:	Takashi Iwai <tiwai@suse.de>
Reported-by:	Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:11:25 +01:00
Dave Airlie e5a867a51d drm/udl: only bind to the video devices on the hub.
This is ported from udlfb.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=832188
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:09:58 +01:00
Hugh Dickins 9b15b817f3 swap: fix shmem swapping when more than 8 areas
Minchan Kim reports that when a system has many swap areas, and tmpfs
swaps out to the ninth or more, shmem_getpage_gfp()'s attempts to read
back the page cannot locate it, and the read fails with -ENOMEM.

Whoops.  Yes, I blindly followed read_swap_header()'s pte_to_swp_entry(
swp_entry_to_pte()) technique for determining maximum usable swap
offset, without stopping to realize that that actually depends upon the
pte swap encoding shifting swap offset to the higher bits and truncating
it there.  Whereas our radix_tree swap encoding leaves offset in the
lower bits: it's swap "type" (that is, index of swap area) that was
truncated.

Fix it by reducing the SWP_TYPE_SHIFT() in swapops.h, and removing the
broken radix_to_swp_entry(swp_to_radix_entry()) from read_swap_header().

This does not reduce the usable size of a swap area any further, it
leaves it as claimed when making the original commit: no change from 3.0
on x86_64, nor on i386 without PAE; but 3.0's 512GB is reduced to 128GB
per swapfile on i386 with PAE.  It's not a change I would have risked
five years ago, but with x86_64 supported for ten years, I believe it's
appropriate now.

Hmm, and what if some architecture implements its swap pte with offset
encoded below type? That would equally break the maximum usable swap
offset check.  Happily, they all follow the same tradition of encoding
offset above type, but I'll prepare a check on that for next.

Reported-and-Reviewed-and-Tested-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org [3.1, 3.2, 3.3, 3.4]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-15 21:48:14 -07:00
Jan Kiszka f961f72836 KVM: Fix PCI header check on device assignment
The masking was wrong (must have been 0x7f), and there is no need to
re-read the value as pci_setup_device already does this for us.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43339
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-06-15 23:22:12 -03:00
Linus Torvalds a2c2df8672 SCSI fixes on 20120614
This is a couple of minor fixes, one for a preempt warning in the mpt2sas
 driver and one is a config failure with the new sd async domain.
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a couple of minor fixes, one for a preempt warning in the
  mpt2sas driver and one is a config failure with the new sd async
  domain."

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] Fix sd_probe_domain config problem
  [SCSI] mpt2sas: Fix unsafe using smp_processor_id() in preemptible
2012-06-15 17:39:32 -07:00
Linus Torvalds 873b779d99 NFS client bugfixes for Linux 3.5
Highlights include:
 
  - Fix a couple of mount regressions due to the recent cleanups.
  - Fix an Oops in the open recovery code
  - Fix an rpc_pipefs upcall hang that results from some of the
    net namespace work from 3.4.x (stable kernel candidate).
  - Fix a couple of write and o_direct regressions that were found
    at last weeks Bakeathon testing event in Ann Arbor.
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Merge tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Fix a couple of mount regressions due to the recent cleanups.
   - Fix an Oops in the open recovery code
   - Fix an rpc_pipefs upcall hang that results from some of the net
     namespace work from 3.4.x (stable kernel candidate).
   - Fix a couple of write and o_direct regressions that were found at
     last weeks Bakeathon testing event in Ann Arbor."

* tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: add an endian notation for sparse
  NFSv4.1: integer overflow in decode_cb_sequence_args()
  rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer
  NFSv4 do not send an empty SETATTR compound
  NFSv2: EOF incorrectly set on short read
  NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts
  NFS: fix directio refcount bug on commit
  NFSv4: Fix unnecessary delegation returns in nfs4_do_open
  NFSv4.1: Convert another trivial printk into a dprintk
  NFS4: Fix open bug when pnfs module blacklisted
  NFS: Remove incorrect BUG_ON in nfs_found_client
  NFS: Map minor mismatch error to protocol not support error.
  NFS: Fix a commit bug
  NFS4: Set parsed mount data version to 4
  NFSv4.1: Ensure we clear session state flags after a session creation
  NFSv4.1: Convert a trivial printk into a dprintk
  NFSv4: Fix up decode_attr_mdsthreshold
  NFSv4: Fix an Oops in the open recovery code
  NFSv4.1: Fix a request leak on the back channel
2012-06-15 17:37:23 -07:00
Linus Torvalds 56b880e2e3 Merge branch 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fixes from Marek Szyprowski:
 "A set of minor fixes for dma-mapping code (ARM and x86) required for
  Contiguous Memory Allocator (CMA) patches merged in v3.5-rc1."

* 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  x86: dma-mapping: fix broken allocation when dma_mask has been provided
  ARM: dma-mapping: fix debug messages in dmabounce code
  ARM: mm: fix type of the arm_dma_limit global variable
  ARM: dma-mapping: Add missing static storage class specifier
2012-06-15 17:35:01 -07:00
Linus Torvalds 1043e3becf PowerPC fix for Linus
Just one commit, and a one-liner at that, but an important one;
 without it hard_irq_disable() does nothing on powerpc.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

Pull PowerPC fix from Paul Mackerras:
 "Just one commit, and a one-liner at that, but an important one;
  without it hard_irq_disable() does nothing on powerpc."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  Make hard_irq_disable() actually hard-disable interrupts
2012-06-15 17:28:20 -07:00
Linus Torvalds 93dd048dbd Merge branch 'for-3.5' of git://linux-nfs.org/~bfields/linux
Pull two nfsd bugfixes from J. Bruce Fields.

* 'for-3.5' of git://linux-nfs.org/~bfields/linux:
  nfsd4: BUG_ON(!is_spin_locked()) no good on UP kernels
  NFS: hard-code init_net for NFS callback transports
2012-06-15 17:27:31 -07:00
Linus Torvalds 069915b946 Five bug-fixes:
- When booting as PVHVM we would try to use PV console - but would not validate
    the parameters causing us to crash during restore b/c we re-use the wrong event
    channel.
  - When booting on machines with SR-IOV PCI bridge we didn't check for the bridge
    and tried to use it.
  - Under AMD machines would advertise the APERFMPERF resulting in needless amount
    of MSRs from the guest.
  - A global value (xen_released_pages) was not subtracted at bootup when pages
    were added back in. This resulted in the balloon worker having the wrong
    account of how many pages were truly released.
  - Fix dead-lock when xen-blkfront is run in the same domain as xen-blkback.
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Merge tag 'stable/for-linus-3.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull five Xen bug-fixes from Konrad Rzeszutek Wilk:

 - When booting as PVHVM we would try to use PV console - but would not validate
   the parameters causing us to crash during restore b/c we re-use the wrong event
   channel.
 - When booting on machines with SR-IOV PCI bridge we didn't check for the bridge
   and tried to use it.
 - Under AMD machines would advertise the APERFMPERF resulting in needless amount
   of MSRs from the guest.
 - A global value (xen_released_pages) was not subtracted at bootup when pages
   were added back in. This resulted in the balloon worker having the wrong
   account of how many pages were truly released.
 - Fix dead-lock when xen-blkfront is run in the same domain as xen-blkback.

* tag 'stable/for-linus-3.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: mark local pages as FOREIGN in the m2p_override
  xen/setup: filter APERFMPERF cpuid feature out
  xen/balloon: Subtract from xen_released_pages the count that is populated.
  xen/pci: Check for PCI bridge before using it.
  xen/events: Add WARN_ON when quick lookup found invalid type.
  xen/hvc: Check HVM_PARAM_CONSOLE_[EVTCHN|PFN] for correctness.
  xen/hvc: Fix error cases around HVM_PARAM_CONSOLE_PFN
  xen/hvc: Collapse error logic.
2012-06-15 17:17:15 -07:00
Linus Torvalds 41c8c53523 USB fixes for 3.5-rc3
Here are a bunch of tiny fixes for the USB core and drivers for 3.5-rc3
 
 A bunch of gadget fixes, and new device ids, as well as some fixes for a number
 of different regressions that have been reported recently.  We also fixed some
 PCI host controllers to resolve a long-standing bug with a whole class of host
 controllers that have been plaguing people for a number of kernel releases,
 preventing their systems from suspending properly.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are a bunch of tiny fixes for the USB core and drivers for
  3.5-rc3

  A bunch of gadget fixes, and new device ids, as well as some fixes for
  a number of different regressions that have been reported recently.
  We also fixed some PCI host controllers to resolve a long-standing bug
  with a whole class of host controllers that have been plaguing people
  for a number of kernel releases, preventing their systems from
  suspending properly.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (41 commits)
  USB: fix gathering of interface associations
  usb: ehci-sh: fix illegal phy_init() running when platform_data is NULL
  usb: cdc-acm: fix devices not unthrottled on open
  Fix OMAP EHCI suspend/resume failure (i693)
  USB: ohci-hub: Mark ohci_finish_controller_resume() as __maybe_unused
  usb: use usb_serial_put in usb_serial_probe errors
  USB: EHCI: Fix build warning in xilinx ehci driver
  USB: fix PS3 EHCI systems
  xHCI: Increase the timeout for controller save/restore state operation
  xhci: Don't free endpoints in xhci_mem_cleanup()
  xhci: Fix invalid loop check in xhci_free_tt_info()
  xhci: Fix error path return value.
  USB: Checking the wrong variable in usb_disable_lpm()
  usb-storage: Add 090c:1000 to unusal-devs
  USB: serial-generic: use a single set of device IDs
  USB: serial: Enforce USB driver and USB serial driver match
  USB: add NO_D3_DURING_SLEEP flag and revert 151b612847
  USB: option: add more YUGA device ids
  USB: mos7840: Fix compilation of usb serial driver
  USB: option: fix memory leak
  ...
2012-06-15 17:10:02 -07:00
Linus Torvalds 8e53ed10f8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
Pull IDE fixes from David S. Miller:

1) Two fixes to icside, one for a build failure and another for a
   warning.  From Christian Dietrich.

2) Fix a bit operation that did erroneous masking, from Julia Lawall.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  drivers/ide/ide-cs.c: adjust suspicious bit operation
  ide: icside.c: fix printk format string compile warning
  ide: icside.c: Fix compile with CONFIG_BLK_DEV_IDEDMA_ICS=n
2012-06-15 17:07:48 -07:00
Chris Mason a8c4a33b98 Btrfs: cast devid to unsigned long long for printk %llu
Avoid warning in 32 bit machines

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-06-15 20:07:17 -04:00
Linus Torvalds 06da03510e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc update from David S. Miller:
 "This just removes some sparc headers that were never, ever, used."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: remove two unused headers
2012-06-15 17:07:06 -07:00
Chris Mason 4325edd078 Btrfs: init old_generation in get_old_root
gcc was giving an uninit variable warning here.  Strictly
speaking we don't need to init it, but this will make things
much less error prone.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-06-15 20:06:54 -04:00