574b59db65
commit 4161b4505f1690358ac0a9ee59845a7887336b21 upstream. When ak4114 work calls its callback and the callback invokes ak4114_reinit(), it stalls due to flush_delayed_work(). For avoiding this, control the reentrance by introducing a refcount. Also flush_delayed_work() is replaced with cancel_delayed_work_sync(). The exactly same bug is present in ak4113.c and fixed as well. Reported-by: Pavel Hofman <pavel.hofman@ivitera.com> Acked-by: Jaroslav Kysela <perex@perex.cz> Tested-by: Pavel Hofman <pavel.hofman@ivitera.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> [lizf: Backported to 3.4: snd_ak4113_reinit() and snd_ak4114_reinit() used flush_delayed_work_sync() instead of flush_delayed_work()] Signed-off-by: Zefan Li <lizefan@huawei.com> |
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| tea6330t.c | ||