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authorArjan van de Ven <arjan@linux.intel.com>2008-04-08 17:41:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-08 18:25:53 -0700
commit4b47c971dc947cadecc20dc7681037e96ece520e (patch)
tree14afde1ea46a6b573ad1602e2ae440cb3f09ff1e /drivers/acpi
parent41e3355de052693c7a0cad74b845148d262edadf (diff)
es1968: fix sleep-while-holding-lock bug
snd_es1968_ac97_read() calls snd_es1968_ac97_wait() first outside a locked area, and later, while holding a lock. snd_es1968_ac97_wait() has a polling loop with a cond_resched() inside it.. which sleeps, so the second call is invalid. This patch adds a version of the wait function that just pure polls. While this is not very elegant in principle, it's very likely the easiest thing to do here, we already checked if the chip was ready (while yielding) just before, so it is very unlikely to take a long time here. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi')
0 files changed, 0 insertions, 0 deletions