Re: [PATCH] ext4: return error code when ext4_fill_flex_info() fails

On Mon, May 10, 2021 at 07:10:51PM +0800, Yang Yingliang wrote:

After commit c89128a00838 ("ext4: handle errors on ext4_commit_super"), 'ret' may be set to 0 before calling ext4_fill_flex_info(), if ext4_fill_flex_info() fails ext4_mount() doesn't return error code, it makes 'root' is null which causes crash in legacy_get_tree().

Fixes: c89128a00838 ("ext4: handle errors on ext4_commit_super") Reported-by: Hulk Robot hulkci@huawei.com Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Yang Yingliang yangyingliang@huawei.com

Applied, thanks.

- Ted