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authorDing Xiang <dingxiang@cmss.chinamobile.com>2019-07-23 15:44:41 +0800
committerTakashi Iwai <tiwai@suse.de>2019-07-23 14:16:11 +0200
commit607975b30db41aad6edc846ed567191aa6b7d893 (patch)
tree6fab25bfa34c143d4dfa0bae26235b7cb674aae1 /sound/ac97
parent3b8179944cb0dd53e5223996966746cdc8a60657 (diff)
downloadlinux-stericsson-607975b30db41aad6edc846ed567191aa6b7d893.tar.gz
ALSA: ac97: Fix double free of ac97_codec_device
put_device will call ac97_codec_release to free ac97_codec_device and other resources, so remove the kfree and other redundant code. Fixes: 74426fbff66e ("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>
Diffstat (limited to 'sound/ac97')
-rw-r--r--sound/ac97/bus.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/sound/ac97/bus.c b/sound/ac97/bus.c
index 7b977b753a03..7985dd8198b6 100644
--- a/sound/ac97/bus.c
+++ b/sound/ac97/bus.c
@@ -122,17 +122,12 @@ 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,