commit 253beebd5a255e07d6a8b65515491f33664e82a2
author Dan Carpenter <dan.carpenter@oracle.com> Wed Apr 18 09:59:03 2012 +0300
committer David Sterba <dsterba@suse.cz> Wed Apr 18 19:22:31 2012 +0200
tree 9bc6b5f567b7683df4b2a8d46ecdc6d8dd139d1e
parent 5cf1ab56133ad7b712673c071b439d4a555a2d1e

Btrfs: double unlock bug in error handling

The caller expects this function to return with the lock held and
releases it immediately on error.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

fs/btrfs/extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2b35f8d..a0bb9dc 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2301,6 +2301,7 @@
 
 				if (ret) {
 					printk(KERN_DEBUG "btrfs: run_delayed_extent_op returned %d\n", ret);
+					spin_lock(&delayed_refs->lock);
 					return ret;
 				}
 
@@ -2331,6 +2332,7 @@
 
 		if (ret) {
 			printk(KERN_DEBUG "btrfs: run_one_delayed_ref returned %d\n", ret);
+			spin_lock(&delayed_refs->lock);
 			return ret;
 		}