[PATCH 4.18 110/171] ext4: fix possible inode leak in the retry loop of ext4_resize_fs()

[Greg Kroah-Hartman]

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Averin <v...@virtuozzo.com>

commit db6aee62406d9fbb53315fcddd81f1dc271d49fa upstream.

Fixes: 1c6bd7173d66 ("ext4: convert file system to meta_bg if needed ...")
Signed-off-by: Vasily Averin <v...@virtuozzo.com>
Signed-off-by: Theodore Ts'o <ty...@mit.edu>
Cc: sta...@kernel.org # 3.7
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/ext4/resize.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -2058,6 +2058,10 @@ retry:
                n_blocks_count_retry = 0;
                free_flex_gd(flex_gd);
                flex_gd = NULL;
+               if (resize_inode) {
+                       iput(resize_inode);
+                       resize_inode = NULL;
+               }
                goto retry;
        }