Commit 3b30f9f4 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Paul Mundt
Browse files

g364fb: 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>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent f316fe72

drivers/video/g364fb.c

+3 −2
Original line number Diff line number Diff line
@@ -149,10 +149,11 @@ int g364fb_cursor(struct fb_info *info, struct fb_cursor *cursor) 
static int g364fb_pan_display(struct fb_var_screeninfo *var, 

			      struct fb_info *info)

{

	if (var->xoffset || var->yoffset + var->yres > var->yres_virtual)

	if (var->xoffset ||

	    var->yoffset + info->var.yres > info->var.yres_virtual)

		return -EINVAL;



	*(unsigned int *) TOP_REG = var->yoffset * var->xres;

	*(unsigned int *) TOP_REG = var->yoffset * info->var.xres;

	return 0;

}