From 9b08c2aa54948361da0e2d26b47e3bcb8f8911e8 Mon Sep 17 00:00:00 2001 From: Karsten Wiese Date: Wed, 4 Oct 2006 17:16:46 +0200 Subject: [PATCH] [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: Karsten Wiese Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usx2y/usx2yhwdeppcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c index 9acef9d905..20708d2ffb 100644 --- a/sound/usb/usx2y/usx2yhwdeppcm.c +++ b/sound/usb/usx2y/usx2yhwdeppcm.c @@ -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; } } -- 2.39.5