From 1d4b695fa32b707b40fe2dab6a21a39bd91f4615 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 25 May 2011 11:34:52 +0200 Subject: [PATCH] gxt4500: 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: Laurent Pinchart --- drivers/video/gxt4500.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c index 896e53dea906..0fad23f810a3 100644 --- a/drivers/video/gxt4500.c +++ b/drivers/video/gxt4500.c @@ -543,8 +543,8 @@ static int gxt4500_pan_display(struct fb_var_screeninfo *var, if (var->xoffset & 7) return -EINVAL; - if (var->xoffset + var->xres > var->xres_virtual || - var->yoffset + var->yres > var->yres_virtual) + if (var->xoffset + info->var.xres > info->var.xres_virtual || + var->yoffset + info->var.yres > info->var.yres_virtual) return -EINVAL; writereg(par, REFRESH_START, (var->xoffset << 16) | var->yoffset); -- 2.20.1