linux-kernel - [PATCH] media: au0828 fix au0828_v4l2_device

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Date:	Mon, 28 Mar 2016 18:25:29 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	mchehab@....samsung.com, hans.verkuil@...co.com,
	nenggun.kim@...sung.com, jh1009.sung@...sung.com,
	chehabrafael@...il.com
Cc:	Shuah Khan <shuahkh@....samsung.com>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] media: au0828 fix au0828_v4l2_device_register() to not unlock and free

au0828_v4l2_device_register() unlocks au0828_dev->lock and frees au0828
dev in error legs before return. au0828_usb_probe() does the same when
au0828_v4l2_device_register() returns error.

Fix au0828_v4l2_device_register() to not to unlock and free in its error
legs.

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
 drivers/media/usb/au0828/au0828-video.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index 32d7db9..7d0ec4c 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -679,8 +679,6 @@ int au0828_v4l2_device_register(struct usb_interface *interface,
 	if (retval) {
 		pr_err("%s() v4l2_device_register failed\n",
 		       __func__);
-		mutex_unlock(&dev->lock);
-		kfree(dev);
 		return retval;
 	}
 
@@ -691,8 +689,6 @@ int au0828_v4l2_device_register(struct usb_interface *interface,
 	if (retval) {
 		pr_err("%s() v4l2_ctrl_handler_init failed\n",
 		       __func__);
-		mutex_unlock(&dev->lock);
-		kfree(dev);
 		return retval;
 	}
 	dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
-- 
2.5.0