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path: root/sound/drivers/pcsp/pcsp_lib.c
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Diffstat (limited to 'sound/drivers/pcsp/pcsp_lib.c')
-rw-r--r--sound/drivers/pcsp/pcsp_lib.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index a302756eac7..54253e9b4b0 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -305,7 +305,9 @@ static int snd_pcsp_playback_open(struct snd_pcm_substream *substream)
return -EBUSY;
}
runtime->hw = snd_pcsp_playback;
+ spin_lock_irq(&chip->substream_lock);
chip->playback_substream = substream;
+ spin_unlock_irq(&chip->substream_lock);
return 0;
}