From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Wed, 25 May 2011 09:34:52 +0000 (+0200)
Subject: g364fb: use display information in info not in var for panning
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=d8344e090c5adff3290925cbb040d20133b7f586;p=~shefty%2Frdma-dev.git

g364fb: 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/g364fb.c b/drivers/video/g364fb.c
index d662317d85e..223896cc5f7 100644
--- a/drivers/video/g364fb.c
+++ b/drivers/video/g364fb.c
@@ -149,10 +149,11 @@ int g364fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 static int g364fb_pan_display(struct fb_var_screeninfo *var, 
 			      struct fb_info *info)
 {
-	if (var->xoffset || var->yoffset + var->yres > var->yres_virtual)
+	if (var->xoffset ||
+	    var->yoffset + info->var.yres > info->var.yres_virtual)
 		return -EINVAL;
 
-	*(unsigned int *) TOP_REG = var->yoffset * var->xres;
+	*(unsigned int *) TOP_REG = var->yoffset * info->var.xres;
 	return 0;
 }