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Michael Spang 1ba869ec58 acer-wmi: fix regression in backlight detection 
Currently we disable the Acer WMI backlight device if there is no ACPI
backlight device.  As a result, we end up with no backlight device at all.
 We should instead disable it if there is an ACPI device, as the other
laptop drivers do.  This regression was introduced in febf2d9 ("Acer-WMI:
fingers off backlight if video.ko is serving this functionality").

Each laptop driver with backlight support got a similar change around
febf2d9.  The changes to the other drivers look correct; see e.g.
a598c82f for a similar but correct change.  The regression is also in
2.6.28.

Signed-off-by: Michael Spang <mspang@csclub.uwaterloo.ca>
Acked-by: Thomas Renninger <trenn@suse.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Len Brown <len.brown@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: <stable@kernel.org>		[2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2009-03-12 16:20:24 -07:00
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accessibility
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acpi Merge branches 'release', 'bugzilla-12011', 'bugzilla-12632', 'misc' and 'suspend' into release 2009-02-21 22:01:43 -05:00
amba [ARM] Fix realview build 2009-01-08 16:29:41 +00:00
ata libata: Don't trust current capacity values in identify words 57-58 2009-03-05 07:26:10 -05:00
atm ATM: misplaced parentheses? 2009-02-18 17:41:38 -08:00
auxdisplay
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base mm: get_nid_for_pfn() returns int 2009-03-10 15:55:10 -07:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-03-09 09:15:40 -07:00
bluetooth
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cdrom
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char Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-03-11 12:14:04 -07:00
clocksource
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connector
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cpufreq Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod." 2009-03-09 15:07:33 -04:00
cpuidle
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crypto crypto: ixp4xx - Fix qmgr_request_queue build failure 2009-03-04 08:01:22 +08:00
dca I/OAT: update driver version and copyright dates 2009-03-04 16:04:40 -07:00
dio m68k: dio - Kill resource_size_t format warnings 2009-01-12 20:56:42 +01:00
dma Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-03-08 10:23:05 -07:00
edac powerpc: More printing warning fixes for the l64 to ll64 conversion 2009-01-28 17:15:52 +11:00
eisa
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firewire firewire: core: Remove card from list of cards when enable fails 2009-02-01 11:17:24 +01:00
firmware Bernhard has moved 2009-02-18 15:37:56 -08:00
gpio gpiolib: fix request related issue 2009-01-29 18:04:43 -08:00
gpu drm/i915: fix 945 fence register writes for fence 8 and above. 2009-03-11 11:02:06 -07:00
hid HID: move tmff and zpff devices from ignore_list to blacklist 2009-02-17 13:25:01 +01:00
hwmon lm85: add VRM10 support for adt7468 chip 2009-03-10 15:55:10 -07:00
i2c Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-03-03 14:12:41 -08:00
ide ide: add at91_ide driver 2009-03-05 16:10:58 +01:00
idle i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:39 -08:00
ieee1394 Make ieee1394_init a fs-initcall 2009-02-26 10:32:31 -08:00
infiniband Merge branches 'ehca', 'ipoib' and 'mlx4' into for-linus 2009-01-16 15:05:54 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-03-02 15:43:03 -08:00
isdn ISDN: fix sc/shmem printk format warning 2009-02-20 00:54:44 -08:00
leds lis3lv02d: merge with leds hp disk 2009-01-15 16:39:40 -08:00
lguest lguest: fix for CONFIG_SPARSE_IRQ=y 2009-03-09 10:06:29 +10:30
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
mca
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md md: fix deadlock when stopping arrays 2009-03-04 00:57:25 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-03-02 15:43:03 -08:00
memstick memstick: annotate endianness of attribute structs 2009-01-09 16:54:41 -08:00
message [SCSI] mpt: fix disable lsi sas to use msi as default 2009-02-22 08:51:07 -06:00
mfd mfd: Fix sm501_register_gpio section mismatch 2009-02-17 09:48:05 +01:00
misc hpilo: new pci device 2009-02-27 16:26:22 -08:00
mmc mmc: s3cmci: fix s3c2410_dma_config() arguments. 2009-03-12 16:20:24 -07:00
mtd mtd: physmap: fix NULL pointer dereference in error path 2009-03-10 15:55:11 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2009-03-12 09:27:53 -07:00
nubus
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of drivers/of: Add the of_find_i2c_device_by_node function. 2009-01-09 15:49:06 -07:00
oprofile oprofile: fix uninitialized use of struct op_entry 2009-01-17 17:26:39 +01:00
parisc Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
parport m68k: atari - Rename "mfp" to "st_mfp" 2009-02-22 09:23:02 -08:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-02-26 14:43:42 -08:00
pcmcia powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
platform acer-wmi: fix regression in backlight detection 2009-03-12 16:20:24 -07:00
pnp Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
power ds2760_battery.c: fix division by zero 2009-03-12 16:20:23 -07:00
ps3 powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/ps3 2009-01-16 16:15:14 +11:00
rapidio rapidio: remove excess kernel-doc notation 2009-01-06 15:59:28 -08:00
regulator leds: Fix bounds checking of wm8350->pmic.led 2009-01-30 21:50:49 +00:00
rtc rtc: t reaches -1, tested 0 2009-02-11 14:25:36 -08:00
s390 [S390] fix "mem=" handling in case of standby memory 2009-02-19 15:19:19 +01:00
sbus sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS 2009-03-04 00:19:28 -08:00
scsi [SCSI] fix ABORTED_COMMAND looping forever problem 2009-02-21 20:29:38 -06:00
serial Merge branch 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-02-27 16:40:00 -08:00
sh
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sn
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spi spi-gpio: sanitize MISO bitvalue 2009-02-18 15:37:56 -08:00
ssb
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staging Staging: w35und: fix usb_control_msg() error handling in wb35_probe() 2009-02-27 12:56:24 -08:00
tc
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telephony
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thermal thermal: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:37 -08:00
uio UIO: Pass information about ioports to userspace (V2) 2009-01-06 10:44:44 -08:00
usb USB: musb: fix srp sysfs entry deletion 2009-02-27 14:40:51 -08:00
uwb uwb: lock rc->rsvs_lock with spin_lock_bh() 2009-01-23 12:57:20 +00:00
video Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-03-11 12:14:04 -07:00
virtio virtio-pci: do not oops on config change if driver not loaded 2009-02-02 19:17:56 -08:00
w1 drivers/w1/masters/w1-gpio.c: fix read_bit() 2009-03-12 16:20:23 -07:00
watchdog [WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclared 2009-03-05 19:25:05 +00:00
xen PM: Split up sysdev_[suspend|resume] from device_power_[down|up] 2009-02-22 10:33:44 -08:00
zorro m68k: zorro - Use %pR to print resources 2009-01-12 20:56:43 +01:00
Kconfig
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Makefile Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00