Commit c272d641 authored by Laurent Pinchart's avatar Laurent Pinchart
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vga16fb: use display information in info not in var for panning 



We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 2883ceba

drivers/video/vga16fb.c

+1 −1
Original line number Diff line number Diff line
@@ -207,7 +207,7 @@ static void vga16fb_pan_var(struct fb_info *info, 
	 * granularity if someone supports xoffset in bit resolution */

	vga_io_r(VGA_IS1_RC);		/* reset flip-flop */

	vga_io_w(VGA_ATT_IW, VGA_ATC_PEL);

	if (var->bits_per_pixel == 8)

	if (info->var.bits_per_pixel == 8)

		vga_io_w(VGA_ATT_IW, (xoffset & 3) << 1);

	else

		vga_io_w(VGA_ATT_IW, xoffset & 7);