Btrfs: Off by one fixes in extent_map.c

Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 7efc047..c0743307 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -616,6 +616,7 @@
 				break;
 			}
 			btrfs_set_key_type(&key, found_type);
+			btrfs_release_path(root, path);
 			continue;
 		}
 		if (found_key.offset >= inode->i_size)