tree c88fbbdb6464bfa35c047b207dd6097f3b447375
parent e93376c20b70d1e62bb3246acd1bbe21fe58859f
author Dan Carpenter <dan.carpenter@oracle.com> 1338229017 -0400
committer Theodore Ts'o <tytso@mit.edu> 1338229017 -0400

ext4: fix potential NULL dereference in ext4_free_inodes_counts()

The ext4_get_group_desc() function returns NULL on error, and
ext4_free_inodes_count() function dereferences it without checking.
There is a check on the next line, but it's too late.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org