[PATCH 5.2 191/215] ALSA: ac97: Fix double free of ac97_codec_device

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/ac97/bus.c |   13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

--- a/sound/ac97/bus.c
+++ b/sound/ac97/bus.c
@@ -122,17 +122,12 @@ static int ac97_codec_add(struct ac97_co
 						      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,





[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux