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

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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

From: Karsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
This commit is contained in:
Karsten Wiese
2006-10-16 14:45:14 +02:00
committed by Chris Wright
parent e0cd3e38de
commit 0e98aebf2a
1 changed files with 1 additions and 1 deletions
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sound/usb/usx2y/usx2yhwdeppcm.c
+1 -1
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@@ -632,7 +632,7 @@ static int usX2Y_pcms_lock_check(struct snd_card *card)
for (s = 0; s < 2; ++s) {
struct snd_pcm_substream *substream;
substream = pcm->streams[s].substream;
if (SUBSTREAM_BUSY(substream))
if (substream && SUBSTREAM_BUSY(substream))
err = -EBUSY;
}
}