diff options
| author |   Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-08 00:15:21 -0500 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2019-08-08 08:18:32 +0200 |
| commit | c7cd7c748a3250ca33509f9235efab9c803aca09 (patch) | |
| tree | 159ab4582286ab702dd0db9c84904a968ab325df /sound/pci/hda | |
| parent | ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457) (diff) | |
| download | linux-dev-c7cd7c748a3250ca33509f9235efab9c803aca09.tar.xz linux-dev-c7cd7c748a3250ca33509f9235efab9c803aca09.zip | |
sound: fix a memory leak bug
In sound_insert_unit(), the controlling structure 's' is allocated through
kmalloc(). Then it is added to the sound driver list by invoking
__sound_insert_unit(). Later on, if __register_chrdev() fails, 's' is
removed from the list through __sound_remove_unit(). If 'index' is not less
than 0, -EBUSY is returned to indicate the error. However, 's' is not
deallocated on this execution path, leading to a memory leak bug.
To fix the above issue, free 's' before -EBUSY is returned.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
0 files changed, 0 insertions, 0 deletions