Btrfs: set error return value in btrfs_get_blocks_direct

We were returning with 0 (success) because we weren't extracting the
error code from em (PTR_ERR(em)). Fix it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2370d72..177508a 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7143,8 +7143,10 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
                                                       block_start, len,
                                                       orig_block_len,
                                                       ram_bytes, type);
-                               if (IS_ERR(em))
+                               if (IS_ERR(em)) {
+                                       ret = PTR_ERR(em);
                                        goto unlock_err;
+                               }
                        }
 
                        ret = btrfs_add_ordered_extent_dio(inode, start,