media: af9035: unlock on error in af9035_i2c_master_xfer()

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@oracle.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 4453b0b..8f9b2ce 100644 (file)
--- 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 i2c_adapter *adap,
                                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 i2c_adapter *adap,
                                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 i2c_adapter *adap,
                ret = -EOPNOTSUPP;
        }
 
+unlock:
        mutex_unlock(&d->i2c_mutex);
 
        if (ret < 0)