This driver supports cmd->start_src sources of TRIG_NOW and TRIG_EXT.
Refactor the (*do_cmdtest) to clarify the trivial validation of the
cmd->start_arg.
This also fixes a bug, the cmd->start_src has the trigger not the
cmd->start_arg.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver supportes cmd->start_src sources of TRIG_NOW, TRIG_INT, TRIG_OTHER,
and TRIG_EXT. Refactor the (*do_cmdtest) to clarify the trivial validation of
the cmd->start_arg. For a TRIG_INT source, the cmd->start_arg is actually the
valid trig_num that is passed to the async (*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver only a cmd->start_src of TRIG_NOW or TRIG_INT. The cmd->start_arg
is trivially validated for both sources to be 0. For a TRIG_INT source, the
cmd->start_arg is actually the valid trig_num that is passed to the async
(*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cmd->start_arg should be trivially validated in Step 3 of the
(*do_cmdtest) functions. Add the necessary code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cmd->start_arg should be trivially validated in Step 3 of the
(*do_cmdtest) functions. Add the necessary code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver only supports a cmd->start_src of TRIG_INT for ao commands. The
cmd->start_arg is trivially validated to be 0. For TRIG_INT source, the
cmd->start_arg is actually the valid trig_num that is passed to the async
(*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cmd->start_arg should be trivially validated in Step 3 of the
(*do_cmdtest) functions. Add the necessary code.
For the analog output, a cmd->start_src of TRIG_NOW and TRIG_INT is
supported. For both sources the cmd->start_arg is validated to be 0.
For a TRIG_INT source, the cmd->start_Arg is actually the valid trig_num
that is passed to the async (*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to
check the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver only supports a cmd->start_src of TRIG_INT for ai commands. The
cmd->start_arg is trivially validated to be 0. For TRIG_INT source, the
cmd->start_arg is actually the valid trig_num that is passed to the async
(*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver supports two cmd->start_src values, TRIG_NOW and TRIG_EXT.
For aesthetics, replace the default case when validating the cmd->start_arg
with the proper case statement.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver trivially validates the cmd->start_arg for all cmd->start_src values
to be 0. For TRIG_INT source, the cmd->start_arg is actually the valid trig_num
that is passed to the async (*inttrig) callback.
Refactor the (*inttrig) functions so that the cmd->start_arg is used to check the
trig_num instead of the open coded values.
For aesthetics, refactor the ai (*do_cmd) to remove some unnecessary {}.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver supports two cmd->start_src values, TRIG_INT and TRIG_EXT. For
TRIG_INT sources, the cmd->start_arg is actually the valid trig_num that is
passed to the async (*inttrig) callback. This driver trivially validates the
arg for this source to be 0.
Refactor the (*inttrig) so that the cmd->start_arg is used to check the trig_num
instead of the open coded value.
For aesthetics, refactor the (*do_cmd) to use if/else instead of the switch when
handling the cmd->start_src. All code paths do the spin lock/unlock so move those
out of the if/else.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver supports two cmd->start_src values, TRIG_NOW and TRIG_INT. TRIG_NOW
sources should always have an arg of 0. For TRIG_INT sources, the cmd->start_arg
is actually the valid trig_num that is passed to the async (*inttrig) callback.
This driver trivially validates the arg for both sources to be 0.
Refactor the (*inttrig) so that the cmd->start_arg is used to check the trig_num
instead of the open coded value.
For aesthetics, refactor the (*do_cmd) to use if/else instead of the switch when
handling the cmd->start_src.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver supports three cmd->start_src values, TRIG_NOW, TRIG_EXT, and
TRIG_INT. TRIG_NOW sources should always have an arg of 0 and arg for TRIG_EXT
sources is driver specific. This driver does not use the cmd->start_arg with
the TRIG_EXT source so a trivial value of 0 is good.
When the cmd->start_src is TRIG_INT the cmd->start_arg is actually the valid
trig_num that is passed to the async (*inttrig) callback. This driver allows
any value to be used and currently carries that value in the private data.
Refactor the (*do_cmdtest) so that the trivial validation of the cmd->start_arg
is clear.
Refactor the (*inttrig) so that the cmd->start_arg is used directly to check
the trig_num and remove the then unused 'ai_inttrig_start' member from the
private data.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The async command 'arguments' should be trivially validated in Step 3 of
the (*do_cmdtest) not Step 2b. Move the validataion in this driver to the
proper place.
This driver supports two cmd->start_src values, TRIG_NOW and TRIG_EXT.
TRIG_NOW sources should always have an arg of 0. The arg for TRIG_EXT
sources is driver specific.
Properly validate the cmd->start_arg based on the cmd->start_src. Remove
the noise when the arg is invalid and modify the cmd->start_arg so that
a valid value is returned to the user.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi_subdevices array is kzalloc()'d so the async command callbacks do
not need to be set to NULL when the analog output subdevice is initialized.
Also, remove the initialzation of the subdevice 'len_chanlist' since this
value is only used by the async commands. The core will default it to 1.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetics, rename the local variable 'error' to 'err'. This is the
normal name for this local variable in (*do_cmdtest) functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Due to a driver limitation, the (*do_cmdtest) for the analog input subdevice
overrides the cmd->chanlist_len to force single channel chanlists. But, the
cmd->scan_end_arg was already validated before this happens. Instead of
fixing the (*do_cmdtest) just set the subdevice len_chanlist to 1 to limit
the chanlist size. Move the comment also.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the async command 'scan_end_src' is TRIG_COUNT the 'scan_end_arg'
is the cmd->chanlist_len. Fix a couple open-coded drivers. Add the
check to the drivers that do not validate this command argument.
The core validates that the cmd->chanlist_len is <= s->len_chanlist.
During the post config after the attach the core also make sure that
the s->len_chanlist is initialized. For clarity, initialize the
s->len_chanlist in a couple drivers that are relying on the core to
initialize it to '1'.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi core checks if the (cmd->chanlist_len > s->len_chanlist) when the
comedi_cmd is copied from user to kernel space by __comedi_get_user_cmd().
If so, the core returns -EINVAL and will not call the subdevice (*do_cmdtest)
and (*do_cmd).
Remove the unnecessary "max" checks in the comedi driver (*do_cmdtest) and
helper functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The labpc_ai_chanlist_invalid() function validates that the cmd->chanlist
is compatible with the hardware. This is step 5 of the (*do_cmdtest).
For aesthetics, rename this function and tidy up the code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ai_check_chanlist() function validates that the cmd->chanlist is compatible
with the hardware. This is step 5 of the (*do_cmdtest).
For aesthetics, rename this function so it has namespace associated with the
driver and tidy up the code.
To minimize the noise, change the dev_err() to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
Remove the unnecessary step 5 code in the analog output async command support.
For aesthetics, factor out the step 5 code for the "cdio" async command support.
Tidy up the factored out code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the async command support. Tidy
up the factored out code.
To minimize the noise, change the dev_err() to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the dev_err() to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the dev_err() to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input and analog
output async command support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input and analog
output async command support. Tidy up the factored out code.
To minimize the noise, change the comedi_error(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog output and analog
input async command support. Tidy up the factored out code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor the step 5 code for the analog output async command
support. Tidy up the factored out code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Step 5 of the (*do_cmdtest) validates that the cmd->chanlist is compatible
with the hardware.
For aesthetics, factor out the step 5 code for the analog input async command
support. Tidy up the factored out code.
To minimize the noise, change the comedi_err(), which is a wrapper around
dev_err(), to dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
devpriv->iobase is currently being used to hold the iobase address used to
read/write the board's registers. The same address is stored in the
comedi_device dev->iobase. We use that instead. The eventual goal is to
decrease the driver's use of the struct addi_private, so that it may
eventually use a much slimmer specialized private struct instead, as the
other addi_apci_* drivers do.
Signed-off-by: Chase Southwood <chase.southwood@yahoo.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This resolves a bunch of merge errors with other fixes that are already
in Linus's tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a duplicated Kconfig entry for "kernel/power/Kconfig"
in menu "Power management options" and "CPU Power Management",
remove the one from menu "CPU Power Management" suggested by
Viresh.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This fixes commit 6290b53de0 (arm64: compat: Wire up new AArch32 syscalls)
which did not update __NR_compat_syscalls accordingly.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: <stable@vger.kernel.org> # 3.14+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
- Change a crucial semantic ordering in the GPIO irqchip
helpers.
- Fix two nasty regressions in the ACPI gpiolib extensions.
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Merge tag 'gpio-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
"A small batch of GPIO fixes for the v3.15 series. I expect more to
come in but I'm a bit behind on mail, might as well get these to you
right now:
- Change a crucial semantic ordering in the GPIO irqchip helpers
- Fix two nasty regressions in the ACPI gpiolib extensions"
* tag 'gpio-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio / ACPI: Prevent potential wrap of GPIO value on OpRegion read
gpio / ACPI: Don't crash on NULL chip->dev
gpio: set data first, then chip and handler
Pull x86 vdso fix from Peter Anvin:
"This is a single build fix for building with gold as opposed to GNU
ld. It got queued up separately and was expected to be pushed during
the merge window, but it got left behind"
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, vdso: Make the vdso linker script compatible with Gold
Some newer PX laptops have the pci device class
set to DISPLAY_OTHER rather than DISPLAY_VGA. This
properly detects ATPX on those laptops.
Based on a patch from: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Cc: airlied@gmail.com
Avoids a crash in certain cases when thermal irqs are generated
before the display structures have been initialized.
v2: fix the vblank and vrefresh helpers as well
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=73931
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Should be 5 rather than 4.
Noticed-by: Mathias Fröhlich <Mathias.Froehlich@gmx.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian König <christian.koenig@amd.com>
File-private locks have been merged into Linux for v3.15, and *now*
people are commenting that the name and macro definitions for the new
file-private locks suck.
...and I can't even disagree. The names and command macros do suck.
We're going to have to live with these for a long time, so it's
important that we be happy with the names before we're stuck with them.
The consensus on the lists so far is that they should be rechristened as
"open file description locks".
The name isn't a big deal for the kernel, but the command macros are not
visually distinct enough from the traditional POSIX lock macros. The
glibc and documentation folks are recommending that we change them to
look like F_OFD_{GETLK|SETLK|SETLKW}. That lessens the chance that a
programmer will typo one of the commands wrong, and also makes it easier
to spot this difference when reading code.
This patch makes the following changes that I think are necessary before
v3.15 ships:
1) rename the command macros to their new names. These end up in the uapi
headers and so are part of the external-facing API. It turns out that
glibc doesn't actually use the fcntl.h uapi header, but it's hard to
be sure that something else won't. Changing it now is safest.
2) make the the /proc/locks output display these as type "OFDLCK"
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Carlos O'Donell <carlos@redhat.com>
Cc: Stefan Metzmacher <metze@samba.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Frank Filz <ffilzlnx@mindspring.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
The hpd (hot plug detect) pin assignment got lost
in the conversion to to the common i2c over aux
code. Without this information, aux transactions
do not work properly. Fixes DP failures.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Specify the 'clock-latency' property to avoid certain cpufreq governors
from refusing to work with the following error:
ondemand governor failed, too long transition latency of HW, fallback to performance governor
Reported-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
If gpmc_cs_remap() fails we will get an error because we are calling
release_resource() on an uninitialized resource. Let's fix that by
checking the resource flags. And while at it, let's also make
gpmc_cs_delete_mem() use the res pointer that we already have to
avoid confusion.
Without this patch we can get the following error:
omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300
Unable to handle kernel NULL pointer dereference at virtual address 00000018
...
(gpmc_cs_free+0x94/0xc8)
(gpmc_probe_generic_child+0x178/0x1ec)
(gpmc_probe_dt+0x1bc/0x2cc)
(gpmc_probe+0x250/0x44c)
(platform_drv_probe+0x3c/0x6c)
(really_probe+0x74/0x208)
(driver_probe_device+0x34/0x50)
(bus_for_each_drv+0x60/0x8c)
(device_attach+0x80/0xa4)
(bus_probe_device+0x88/0xb0)
(device_add+0x320/0x450)
(of_platform_device_create_pdata+0x80/0x9c)
(of_platform_bus_create+0xd0/0x170)
(of_platform_bus_create+0x12c/0x170)
(of_platform_populate+0x60/0x98)
(pdata_quirks_init+0x30/0x48)
(customize_machine+0x20/0x48)
(do_one_initcall+0x2c/0x14c)
(do_basic_setup+0x98/0xd8)
(kernel_init_freeable+0x12c/0x1e0)
(kernel_init+0x8/0xf0)
(ret_from_fork+0x14/0x2c)
Code: e1a04000 e59f0070 eb195136 e5942010 (e5923018)
Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: tony Lindgren <tony@atomide.com>
H Hartley Sweeten