[PATCH 2/2] [btrfs] btrfs_rename(): don't ignore btrfs_end_transaction() return

["Davide C. C. Italiano" <dccitaliano@gmail.com>]

From: Davide Italiano <dccitaliano@gmail.com>

btrfs_end_transaction() can return an error -- this happens, e.g.
if it tries to commit and the transaction was aborted in the meanhwile.
Swallowing the error is wrong, so explicitly return it.

Signed-off-by: Davide Italiano <dccitaliano@gmail.com>
---
 fs/btrfs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 59c475c..61b26be 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9199,7 +9199,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		btrfs_end_log_trans(root);
 	}
 out_fail:
-	btrfs_end_transaction(trans, root);
+	if (!ret)
+		ret = btrfs_end_transaction(trans, root);
 out_notrans:
 	if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
 		up_read(&root->fs_info->subvol_sem);
-- 
2.4.3