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| author | Ding Xiang <dingxiang@cmss.chinamobile.com> | 2019-07-23 15:44:41 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-31 07:27:11 +0200 |
| commit | 602744097b2ed21b133586d8bd937b2ce79c1949 (patch) | |
| tree | 466a42226b644bf9ae89590bb75e875688bfa471 /sound/ac97 | |
| parent | 9845fb5a3f9069111244f6aa9438f1f5d7392df6 (diff) | |
| download | linux-stable-602744097b2ed21b133586d8bd937b2ce79c1949.tar.gz linux-stable-602744097b2ed21b133586d8bd937b2ce79c1949.tar.bz2 linux-stable-602744097b2ed21b133586d8bd937b2ce79c1949.zip | |
ALSA: ac97: Fix double free of ac97_codec_device
commit 607975b30db41aad6edc846ed567191aa6b7d893 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: 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/ac97')
| -rw-r--r-- | sound/ac97/bus.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/sound/ac97/bus.c b/sound/ac97/bus.c index 9cbf6927abe9..ca50ff444796 100644 --- a/sound/ac97/bus.c +++ b/sound/ac97/bus.c @@ -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, |