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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2010-11-24 12:57:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-25 06:50:47 +0900
commitd1d73578e053b981c3611e5a211534290d24a5eb (patch)
tree3879428554320c30bc3ccfd0b217710e256ca36f /drivers/macintosh/windfarm_pm112.c
parentb38eeaae267e4cd385ababcc2df82f6c46fc8633 (diff)
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backlight: grab ops_lock before testing bd->ops
According to the comment describing ops_lock in the definition of struct backlight_device and when comparing with other functions in backlight.c the mutex must be hold when checking ops to be non-NULL. Fixes a problem added by c835ee7f4154992e6 ("backlight: Add suspend/resume support to the backlight core") in Jan 2009. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Richard Purdie <rpurdie@linux.intel.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/macintosh/windfarm_pm112.c')
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