Commit 2970840c authored by Laurent Pinchart's avatar Laurent Pinchart
Browse files

acornfb: 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 3846e93a

drivers/video/acornfb.c

+2 −2
Original line number Diff line number Diff line
@@ -850,9 +850,9 @@ acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) 
	u_int y_bottom = var->yoffset;



	if (!(var->vmode & FB_VMODE_YWRAP))

		y_bottom += var->yres;

		y_bottom += info->var.yres;



	if (y_bottom > var->yres_virtual)

	if (y_bottom > info->var.yres_virtual)

		return -EINVAL;



	acornfb_update_dma(info, var);