68328fb: use display information in info not in var for panning
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Fri, 19 Aug 2011 08:28:58 +0000 (10:28 +0200)
We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
drivers/video/68328fb.c

index 75a39eab70c38e291363473074ff8373dcf30135..a425d65d5ba2d5d2e66f513f5dfcfa29b62de186 100644 (file)
@@ -378,8 +378,8 @@ static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
                    || var->xoffset)
                        return -EINVAL;
        } else {
-               if (var->xoffset + var->xres > info->var.xres_virtual ||
-                   var->yoffset + var->yres > info->var.yres_virtual)
+               if (var->xoffset + info->var.xres > info->var.xres_virtual ||
+                   var->yoffset + info->var.yres > info->var.yres_virtual)
                        return -EINVAL;
        }
        info->var.xoffset = var->xoffset;