Commit 465cb7e7 authored by Laurent Pinchart's avatar Laurent Pinchart
Browse files

fbdev: unicore32: 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>
Tested-by: default avatarGuan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: default avatarGuan Xuetao <gxt@mprc.pku.edu.cn>
parent 8b76c682

drivers/video/fb-puv3.c

+2 −2
Original line number Diff line number Diff line
@@ -624,8 +624,8 @@ static int unifb_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;