From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Wed, 25 May 2011 09:34:52 +0000 (+0200)
Subject: neofb: use display information in info not in var for panning
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4935ebf43cedadcaffa56cd59449c8b6dda6d507;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

neofb: 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 <laurent.pinchart@ideasonboard.com>
---

diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 588527a254c2..feea7b1dc386 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -1185,8 +1185,8 @@ static int neofb_pan_display(struct fb_var_screeninfo *var,
 
 	DBG("neofb_update_start");
 
-	Base = (var->yoffset * var->xres_virtual + var->xoffset) >> 2;
-	Base *= (var->bits_per_pixel + 7) / 8;
+	Base = (var->yoffset * info->var.xres_virtual + var->xoffset) >> 2;
+	Base *= (info->var.bits_per_pixel + 7) / 8;
 
 	neoUnlock();