tree d6b4a0f09437f29bec1648deafce440fbc5f87dd
parent 74dd7c97ea2ab08b41925ab2f472db573accda89
author Al Viro <viro@zeniv.linux.org.uk> 1539404353 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1539404353 -0400

gfs2_meta: ->mount() can get NULL dev_name

get in sync with mount_bdev() handling of the same

Reported-by: syzbot+c54f8e94e6bba03b04e9@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>