tree 04797ae33134e092a4f25ac8a2f5dec108d0b0f7
parent fd26725f6eafa84cb112ee889b2765b57e1263d8
author Chao Yu <yuchao0@huawei.com> 1585215746 +0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1585934491 -0700

f2fs: fix to verify tpage before releasing in f2fs_free_dic()

In below error path, tpages[i] could be NULL, fix to check it before
releasing it.
- f2fs_read_multi_pages
 - f2fs_alloc_dic
  - f2fs_free_dic

Fixes: 61fbae2b2b12 ("f2fs: fix to avoid NULL pointer dereference")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>