[PATCH 3.10 55/78] media: af9035: unlock on error in af9035_i2c_master_xfer()

From: Greg Kroah-Hartman
Date: Wed Dec 18 2013 - 16:59:28 EST


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

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

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

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@xxxxxxxxxx>
Acked-by: Antti Palosaari <crope@xxxxxx>
Signed-off-by: Antti Palosaari <crope@xxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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
@@ -244,7 +244,8 @@ 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;
@@ -280,7 +281,8 @@ 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;
@@ -300,6 +302,7 @@ static int af9035_i2c_master_xfer(struct
ret = -EOPNOTSUPP;
}

+unlock:
mutex_unlock(&d->i2c_mutex);

if (ret < 0)


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