HID: unlock on error path in hid_device_probe()

We recently introduced locking into this function, but we missed an
error path which needs an unlock.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/hid-core.c

@@ -1642,8 +1642,10 @@ static int hid_device_probe(struct device *dev)
 
 	if (!hdev->driver) {
 		id = hid_match_device(hdev, hdrv);
-		if (id == NULL)
-			return -ENODEV;
+		if (id == NULL) {
+			ret = -ENODEV;
+			goto unlock;
+		}
 
 		hdev->driver = hdrv;
 		if (hdrv->probe) {
@@ -1656,7 +1658,7 @@ static int hid_device_probe(struct device *dev)
 		if (ret)
 			hdev->driver = NULL;
 	}
-
+unlock:
 	up(&hdev->driver_lock);
 	return ret;
 }