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authorTakashi Iwai <tiwai@suse.de>2019-11-14 18:01:52 +0100
committerTakashi Iwai <tiwai@suse.de>2019-11-14 18:02:00 +0100
commitb12b2259bc4c1e0b34d4adb5c0e41b23761a5c08 (patch)
tree2ba710e251093b204af6e53860c9d3e8223e1d03 /sound/core
parent509526706e68e4fb47519f02f78b48c818869d4e (diff)
parent976a68f06b2ea49e2ab67a5f84919a8b105db8be (diff)
downloadlinux-b12b2259bc4c1e0b34d4adb5c0e41b23761a5c08.tar.bz2
Merge branch 'for-linus' into for-next
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_lib.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d80041ea4e01..2236b5e0c1f2 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1782,11 +1782,14 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
unsigned long flags;
- if (PCM_RUNTIME_CHECK(substream))
+ if (snd_BUG_ON(!substream))
return;
- runtime = substream->runtime;
snd_pcm_stream_lock_irqsave(substream, flags);
+ if (PCM_RUNTIME_CHECK(substream))
+ goto _unlock;
+ runtime = substream->runtime;
+
if (!snd_pcm_running(substream) ||
snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
@@ -1797,6 +1800,7 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
#endif
_end:
kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
+ _unlock:
snd_pcm_stream_unlock_irqrestore(substream, flags);
}
EXPORT_SYMBOL(snd_pcm_period_elapsed);