[syzbot] WARNING in drm_gem_shmem_vm_open

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 0499f419b76f94ede08304aad5851144813ac55c
Author: Javier Martinez Canillas <javierm at redhat.com>
Date:   Mon Jan 10 09:56:25 2022 +0000

    video: vga16fb: Only probe for EGA and VGA 16 color graphic cards

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=126571e0700000
start commit:   5d6ab0bb408f Merge tag 'xtensa-20211008' of git://github.c..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=32e6048063923b7b
dashboard link: https://syzkaller.appspot.com/bug?extid=91525b2bd4b5dff71619
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11073300b00000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: video: vga16fb: Only probe for EGA and VGA 16 color graphic cards

For information about bisection process see: https://goo.gl/tpsmEJ#bisection