mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-15 23:25:07 +00:00
Code Issues Releases Wiki Activity

ALSA: ac97: Fix double free of ac97_codec_device

Browse source 
commit 607975b30d upstream.

put_device will call ac97_codec_release to free
ac97_codec_device and other resources, so remove the kfree
and other redundant code.

Fixes: 74426fbff6 ("ALSA: ac97: add an ac97 bus")
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ding Xiang 2019-07-23 15:44:41 +08:00 committed by Greg Kroah-Hartman
parent 9845fb5a3f
commit 602744097b
1 changed files with 4 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
sound/ac97/bus.c
View file

@ -125,17 +125,12 @@ static int ac97_codec_add(struct ac97_controller *ac97_ctrl, int idx,
vendor_id);
ret = device_add(&codec->dev);
if (ret)
goto err_free_codec;
if (ret) {
put_device(&codec->dev);
return ret;
}
return 0;
err_free_codec:
of_node_put(codec->dev.of_node);
put_device(&codec->dev);
kfree(codec);
ac97_ctrl->codecs[idx] = NULL;
return ret;
}
unsigned int snd_ac97_bus_scan_one(struct ac97_controller *adrv,