gfs2_meta: ->mount() can get NULL dev_name
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 13 Oct 2018 04:19:13 +0000 (00:19 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 13 Nov 2018 19:16:56 +0000 (11:16 -0800)
commit4b347ab6ee3c018c3007cb87fc4a8b1e4dd285e0
tree7704b82f312bd6d6a63e8224d1fdb8b974fb2756
parent2613e75968a07109ab1a1c4feca1afa493729aaa
gfs2_meta: ->mount() can get NULL dev_name

commit 3df629d873f8683af6f0d34dfc743f637966d483 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/gfs2/ops_fstype.c