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fbmem: Check virtual screen sizes in fb_set_var()
authorHelge Deller <deller@gmx.de>
Wed, 29 Jun 2022 13:53:55 +0000 (15:53 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Jul 2022 14:30:47 +0000 (16:30 +0200)
commitb97d979b8b655a2742b4a4cf56b8d553d2674e0a
tree152ee114c2aeeb0912135b37433e315069af616ftree | snapshot
parent08417b6348bdcc088a5374529dfa84e680abef50commit | diff
fbmem: Check virtual screen sizes in fb_set_var()

commit 418007162d21d0f5dbdf1b3d568253501173de75 upstream.

Verify that the fbdev or drm driver correctly adjusted the virtual
screen sizes. On failure report the failing driver and reject the screen
size change.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/video/fbdev/core/fbmem.c diff | blob | history
Linux Kernel Source Tree.