- 23 3月, 2011 1 次提交
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由 Matthew Garrett 提交于
There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 23 12月, 2010 1 次提交
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由 Axel Lin 提交于
Signed-off-by: NAxel Lin <axel.lin@gmail.com> Cc: Thomas Hellstrom <thomas@tungstengraphics.com> Cc: Alan Hourihane <alanh@tungstengraphics.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 17 3月, 2010 1 次提交
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由 Matthew Garrett 提交于
Values such as max_brightness should be set before backlights are registered, but the current API doesn't allow that. Add a parameter to backlight_device_register and update drivers to ensure that they set this correctly. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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- 17 12月, 2009 1 次提交
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由 Roel Kluin 提交于
Return the PTR_ERR of the correct pointer. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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- 16 12月, 2009 1 次提交
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由 Emese Revfy 提交于
Signed-off-by: NEmese Revfy <re.emese@gmail.com> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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- 08 1月, 2009 1 次提交
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由 Akinobu Mita 提交于
Use platform_device_register_simple() and also fix error handling when platform_device_alloc() fails (cr_backlight_driver is left registered). Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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- 17 10月, 2007 1 次提交
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由 Krzysztof Helt 提交于
This patch replaces <asm/uaccess.h> with <linux/uaccess.h> after the checkpatch.pl hint. The include of <asm/uaccess.h> is removed if the driver does not use it. Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: NAntonino Daplas <adaplas@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 10月, 2007 1 次提交
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由 Jesper Juhl 提交于
After fixing the too small memory allocation in cr_backlight_probe() from drivers/video/backlight/cr_bllcd.c (commit e3bbb3f0) I noticed that the Coverity checker also thought there were a few memory leaks in there. I took a closer look and confirmed that there were indeed several leaks. At the start of the function we allocate storage for a 'struct cr_panel' and store the pointer in a variable named 'crp'. Then we call pci_get_device() and pci_read_config_byte() and if either of them fail we return without freeing the memory allocated for the 'struct cr_panel'. These two leaks are easy to fix since we don't even use 'crp' for anything up to this point, so I simply moved the allocation further down in the function so it only happens just before we actually need it. A bit further down we call backlight_device_register() and store the result in 'crp->cr_backlight_device'. In case of error we return 'crp->cr_backlight_device' from the function, thus leaking 'crp' itself. The same thing happens with the call to lcd_device_register(). To fix these two leaks I declare two new pointers to hold the return values, so that in case of error we can return the pointer (as before) but without leaking 'crp'. This version of the patch also adds missing backlight_device_unregister() / lcd_device_unregister() / pci_dev_put() calls to error paths. Thanks to Richard Purdie <rpurdie@rpsys.net> for noticing. Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 22 7月, 2007 1 次提交
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由 Andrew Morton 提交于
Build fix for cr_bllcd.c Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 20 7月, 2007 1 次提交
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由 Jesper Juhl 提交于
The Coverity checker noticed that we allocate too little storage for "struct cr_panel *crp" in cr_backlight_probe(). Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Cc: Thomas Hellstrom <thomas@tungstengraphics.com> Cc: Alan Hourihane <alanh@tungstengraphics.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 7月, 2007 1 次提交
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由 Richard Purdie 提交于
Convert the backlight and LCD classes from struct class_device to struct device since class_device is scheduled for removal. One nasty API break is the backlight power attribute has had to be renamed to bl_power and the LCD power attribute has had to be renamed to lcd_power since the original names clash with the core. I can't see a way around this. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 09 5月, 2007 1 次提交
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由 Alan Hourihane 提交于
Add the Intel Vermilion Range framebuffer support. Signed-off-by: NAlan Hourihane <alanh@tungstengraphics.com> Signed-off-by: NAntonino Daplas <adaplas@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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