Commit 7b116e54 authored by Laurent Pinchart's avatar Laurent Pinchart
Browse files

hgafb: 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 1d4b695f

drivers/video/hgafb.c

+2 −2
Original line number Diff line number Diff line
@@ -422,8 +422,8 @@ static int hgafb_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

		 || var->yoffset % 8)

			return -EINVAL;

	}