[ALSA] sound: fix PCM substream list
authorAkinobu Mita <akinobu.mita@gmail.com>
Thu, 23 Nov 2006 11:03:24 +0000 (12:03 +0100)
committerJaroslav Kysela <perex@server.perex.cz>
Wed, 20 Dec 2006 07:56:00 +0000 (08:56 +0100)
commit4d361285925613516560f81f8c7fc96b89c8b1a8
treefe0d8766af901f3fa99023f6aaab223412f6f364
parentc13893d7be4f159b359a1b7ee46b3646ecb2fe20
[ALSA] sound: fix PCM substream list

If snd_pcm_new_stream() fails to initalize a substream (if
snd_pcm_substream_proc_init() returns error), snd_pcm_new_stream()
immediately return without unlinking that kfree()d substram.
It causes oops when snd_pcm_free() iterates the list of substream to
free them by invalid reference.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
sound/core/pcm.c