fix-possible-inode-leak-in-retry-loop-of-ext4_resize_fs

   1 ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
   2
   3 From:   Vasily Averin <vvs@virtuozzo.com>
   4
   5 Fixes: 1c6bd7173d66 ("ext4: convert file system to meta_bg if needed ...")
   6 Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
   7 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
   8 Cc: stable@kernel.org # 3.7
   9 ---
  10  fs/ext4/resize.c | 4 ++++
  11  1 file changed, 4 insertions(+)
  12
  13 diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
  14 index 5fee65afd58b..85158e9de7c2 100644
  15 --- a/fs/ext4/resize.c
  16 +++ b/fs/ext4/resize.c
  17 @@ -2058,6 +2058,10 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
  18                 n_blocks_count_retry = 0;
  19                 free_flex_gd(flex_gd);
  20                 flex_gd = NULL;
  21 +               if (resize_inode) {
  22 +                       iput(resize_inode);
  23 +                       resize_inode = NULL;
  24 +               }
  25                 goto retry;
  26         }
  27
  28 --
  29 2.17.1
  30
  31