ext4-check-ext4_ext_split-return-failure.patch

   1 ext4: return error when calling ext4_ext_split failed
   2
   3 From: Shen Feng <shen@cn.fujitsu.com>
   4
   5 ext4_ext_create_new_leaf must return error when its
   6 calling to ext4_ext_split failed.
   7
   8 Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
   9 Signed-off-by: Mingming Cao <cmm@us.ibm.com>
  10 Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
  11 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
  12 ---
  13  fs/ext4/extents.c |    2 ++
  14  1 file changed, 2 insertions(+)
  15
  16 Index: linux-2.6.26-rc6/fs/ext4/extents.c
  17 ===================================================================
  18 --- linux-2.6.26-rc6.orig/fs/ext4/extents.c     2008-06-17 10:43:28.000000000 -0700
  19 +++ linux-2.6.26-rc6/fs/ext4/extents.c  2008-06-17 10:43:29.000000000 -0700
  20 @@ -981,6 +981,8 @@ repeat:
  21                 /* if we found index with free entry, then use that
  22                  * entry: create all needed subtree and add new leaf */
  23                 err = ext4_ext_split(handle, inode, path, newext, i);
  24 +               if (err)
  25 +                       goto out;
  26
  27                 /* refill path */
  28                 ext4_ext_drop_refs(path);