linux-stable.git/drivers/video, branch v2.6.38

drivers/video/backlight/ltv350qv.c: fix a memory leak

2011-03-05T01:53:38+00:00

Signed-off-by: Axel Lin 
Cc: Haavard Skinnemoen 
Cc: Richard Purdie 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

console: rename acquire/release_console_sem() to console_lock/unlock()

2011-01-26T00:50:06+00:00

The -rt patches change the console_semaphore to console_mutex.  As a
result, a quite large chunk of the patches changes all
acquire/release_console_sem() to acquire/release_console_mutex()

This commit makes things use more neutral function names which dont make
implications about the underlying lock.

The only real change is the return value of console_trylock which is
inverted from try_acquire_console_sem()

This patch also paves the way to switching console_sem from a semaphore to
a mutex.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert]
Signed-off-by: Torben Hohn 
Cc: Thomas Gleixner 
Cc: Greg KH 
Cc: Ingo Molnar 
Cc: Geert Uytterhoeven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6

2011-01-25T23:01:22+00:00

* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6:
  mailmap: Add an entry for Axel Lin.
  video: fix some comments in drivers/video/console/vgacon.c
  drivers/video/bf537-lq035.c: Add missing IS_ERR test
  video: pxa168fb: remove a redundant pxa168fb_check_var call
  video: da8xx-fb: fix fb_probe error path
  video: pxa3xx-gcu: Return -EFAULT when copy_from_user() fails
  video: nuc900fb: properly free resources in nuc900fb_remove
  video: nuc900fb: fix compile error

video: fix some comments in drivers/video/console/vgacon.c

2011-01-25T06:10:21+00:00

Now vgacon_scrollback_startup() uses slab, not bootmem,
the comment above it is obsolete, so does __init_refok.

Signed-off-by: WANG Cong 
Signed-off-by: Paul Mundt

drivers/video/bf537-lq035.c: Add missing IS_ERR test

2011-01-25T06:09:24+00:00

lcd_device_register may return ERR_PTR, so a check is added for this value
before the dereference.  All of the other changes reorganize the error
handling code in this function to avoid duplicating all of it in the added
case.

In the original code, in one case, the global variable fb_buffer was set to
NULL in error code that appears after this variable is initialized.  This
is done now in all error handling code that has this property.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@r@
identifier f;
@@
f(...) { ... return ERR_PTR(...); }

@@
identifier r.f, fld;
expression x;
statement S1,S2;
@@
 x = f(...)
 ... when != IS_ERR(x)
(
 if (IS_ERR(x) ||...) S1 else S2
|
*x->fld
)
// 

Signed-off-by: Julia Lawall 
Acked-by: Mike Frysinger 
Signed-off-by: Paul Mundt

video: pxa168fb: remove a redundant pxa168fb_check_var call

2011-01-25T06:09:19+00:00

Current implementation calls pxa168fb_check_var twice in pxa168fb_probe.

Signed-off-by: Axel Lin 
Signed-off-by: Paul Mundt

video: da8xx-fb: fix fb_probe error path

2011-01-25T06:09:13+00:00

Current implementation puts CONFIG_CPU_FREQ at wrong place, CONFIG_CPU_FREQ
is for lcd_da8xx_cpufreq_deregister not for unregister_framebuffer.

Signed-off-by: Axel Lin 
Signed-off-by: Paul Mundt

backlight: fix 88pm860x_bl macro collision

2011-01-21T01:02:06+00:00

Fix collision with kernel-supplied #define:

  drivers/video/backlight/88pm860x_bl.c:24:1: warning: "CURRENT_MASK" redefined
  arch/x86/include/asm/page_64_types.h:6:1: warning: this is the location of the previous definition

Signed-off-by: Randy Dunlap 
Cc: Haojian Zhuang 
Cc: Richard Purdie 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT

2011-01-21T01:02:05+00:00

The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.

This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel.  A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).

Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.

Reviewed-by: Ingo Molnar 
Acked-by: David Woodhouse 
Signed-off-by: David Rientjes 
Cc: Greg KH 
Cc: "David S. Miller" 
Cc: Jens Axboe 
Cc: Arnd Bergmann 
Cc: Robin Holt 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

video: pxa3xx-gcu: Return -EFAULT when copy_from_user() fails

2011-01-18T04:40:34+00:00

Return -EFAULT instead of number of bytes that could not be copied if
copy_from_user() fails.

Also fix a typo in the comments.

Signed-off-by: Axel Lin 
Signed-off-by: Paul Mundt