66c1ca0190
Fix a circular locking dependency in the frame buffer console driver pushing down the mutex fb_info->lock. Circular locking dependecies occur calling the blocking fb_notifier_call_chain() with fb_info->lock held. Notifier callbacks can try to acquire mm->mmap_sem, while fb_mmap() acquires the locks in the reverse order mm->mmap_sem => fb_info->lock. Tested-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| atmel-pwm-bl.c | ||
| backlight.c | ||
| corgi_lcd.c | ||
| cr_bllcd.c | ||
| da903x_bl.c | ||
| generic_bl.c | ||
| hp680_bl.c | ||
| ili9320.c | ||
| ili9320.h | ||
| kb3886_bl.c | ||
| lcd.c | ||
| locomolcd.c | ||
| ltv350qv.c | ||
| ltv350qv.h | ||
| mbp_nvidia_bl.c | ||
| omap1_bl.c | ||
| platform_lcd.c | ||
| progear_bl.c | ||
| pwm_bl.c | ||
| tdo24m.c | ||
| tosa_bl.c | ||
| tosa_lcd.c | ||
| vgg2432a4.c | ||