Commit 9b08c2aa authored by Karsten Wiese's avatar Karsten Wiese Committed by Jaroslav Kysela

[ALSA] Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check()

Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check()
substream can be NULL......
in mainline, bug was introduced by:
2006-06-22  [ALSA] Add O_APPEND flag support to PCM
Signed-off-by: default avatarKarsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 104326f8
...@@ -632,7 +632,7 @@ static int usX2Y_pcms_lock_check(struct snd_card *card) ...@@ -632,7 +632,7 @@ static int usX2Y_pcms_lock_check(struct snd_card *card)
for (s = 0; s < 2; ++s) { for (s = 0; s < 2; ++s) {
struct snd_pcm_substream *substream; struct snd_pcm_substream *substream;
substream = pcm->streams[s].substream; substream = pcm->streams[s].substream;
if (SUBSTREAM_BUSY(substream)) if (substream && SUBSTREAM_BUSY(substream))
err = -EBUSY; err = -EBUSY;
} }
} }
......
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