From 607975b30db41aad6edc846ed567191aa6b7d893 Mon Sep 17 00:00:00 2001 From: Ding Xiang Date: Tue, 23 Jul 2019 15:44:41 +0800 Subject: [PATCH] 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 Cc: Signed-off-by: Takashi Iwai --- sound/ac97/bus.c | 13 ++++--------- 1 file 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,