3fa6993fef
The user timer tu->qused counter may go to a negative value when multiple concurrent reads are performed since both the check and the decrement of tu->qused are done in two individual locked contexts. This results in bogus read outs, and the endless loop in the user-space side. The fix is to move the decrement of the tu->qused counter into the same spinlock context as the zero-check of the counter. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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.. | ||
oss | ||
seq | ||
compress_offload.c | ||
control_compat.c | ||
control.c | ||
ctljack.c | ||
device.c | ||
hrtimer.c | ||
hwdep_compat.c | ||
hwdep.c | ||
info_oss.c | ||
info.c | ||
init.c | ||
isadma.c | ||
jack.c | ||
Kconfig | ||
Makefile | ||
memalloc.c | ||
memory.c | ||
misc.c | ||
pcm_compat.c | ||
pcm_dmaengine.c | ||
pcm_drm_eld.c | ||
pcm_iec958.c | ||
pcm_lib.c | ||
pcm_memory.c | ||
pcm_misc.c | ||
pcm_native.c | ||
pcm_timer.c | ||
pcm_trace.h | ||
pcm.c | ||
rawmidi_compat.c | ||
rawmidi.c | ||
sgbuf.c | ||
sound_oss.c | ||
sound.c | ||
timer_compat.c | ||
timer.c | ||
vmaster.c |