linux-kernel - [PATCH 3.12 077/118] media: af9035: unlock on error in af9035_i2c_master

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Date:	Wed, 18 Dec 2013 13:11:54 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
	Antti Palosaari <crope@....fi>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [PATCH 3.12 077/118] media: af9035: unlock on error in af9035_i2c_master_xfer()

3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 3189ef0290dcc9f44782672fade35847cb30da00 upstream.

We introduced a couple new error paths which are missing unlocks.
Fixes: 7760e148350b ('[media] af9035: Don't use dynamic static allocation')

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Antti Palosaari <crope@....fi>
Signed-off-by: Antti Palosaari <crope@....fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/usb/dvb-usb-v2/af9035.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -245,7 +245,8 @@ static int af9035_i2c_master_xfer(struct
 				dev_warn(&d->udev->dev,
 					 "%s: i2c xfer: len=%d is too big!\n",
 					 KBUILD_MODNAME, msg[0].len);
-				return -EOPNOTSUPP;
+				ret = -EOPNOTSUPP;
+				goto unlock;
 			}
 			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 			buf[0] = msg[1].len;
@@ -281,7 +282,8 @@ static int af9035_i2c_master_xfer(struct
 				dev_warn(&d->udev->dev,
 					 "%s: i2c xfer: len=%d is too big!\n",
 					 KBUILD_MODNAME, msg[0].len);
-				return -EOPNOTSUPP;
+				ret = -EOPNOTSUPP;
+				goto unlock;
 			}
 			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 			buf[0] = msg[0].len;
@@ -319,6 +321,7 @@ static int af9035_i2c_master_xfer(struct
 		ret = -EOPNOTSUPP;
 	}
 
+unlock:
 	mutex_unlock(&d->i2c_mutex);
 
 	if (ret < 0)


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