Btrfs - Fix memory leak in btrfs_init_new_device()

Memory allocated by calling kstrdup() should be freed.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 7cad593..dadaaa8 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1603,12 +1603,14 @@
 
 	ret = find_next_devid(root, &device->devid);
 	if (ret) {
+		kfree(device->name);
 		kfree(device);
 		goto error;
 	}
 
 	trans = btrfs_start_transaction(root, 0);
 	if (IS_ERR(trans)) {
+		kfree(device->name);
 		kfree(device);
 		ret = PTR_ERR(trans);
 		goto error;