tree 7968e7e173b3bba281bc29e1d66ba621bb15a997
parent 88d8822d30cc6f668d44a1a7466bed5a1f85f607
author Michał Mirosław <mirq-linux@rere.qmqm.pl> 1591635039 +0200
committer Takashi Iwai <tiwai@suse.de> 1591637729 +0200

ALSA: pcm: disallow linking stream to itself

Prevent SNDRV_PCM_IOCTL_LINK linking stream to itself - the code
can't handle it. Fixed commit is not where bug was introduced, but
changes the context significantly.

Cc: stable@vger.kernel.org
Fixes: 0888c321de70 ("pcm_native: switch to fdget()/fdput()")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/89c4a2487609a0ed6af3ecf01cc972bdc59a7a2d.1591634956.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Takashi Iwai <tiwai@suse.de>