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Subject[PATCH] ALSA: ac97: Fix double free of ac97_codec_device
Date
put_device will call ac97_codec_release to free
ac97_codec_device and other resources, so remove the kfree
and other redundant code.

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
---
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 7b977b7..7985dd8 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,
--
1.9.1


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