commit d8344e090c5adff3290925cbb040d20133b7f586
author Laurent Pinchart <laurent.pinchart@ideasonboard.com> Wed May 25 11:34:52 2011 +0200
committer Laurent Pinchart <laurent.pinchart@ideasonboard.com> Fri Aug 19 10:31:09 2011 +0200
tree 55cc3ed84ceb1c73d274092135a03c55d2151835
parent 465cb7e700e8564fd2d76d5c7f3703eb07659617

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>

drivers/video/g364fb.c

diff --git a/drivers/video/g364fb.c b/drivers/video/g364fb.c
index d662317..223896c 100644
--- a/drivers/video/g364fb.c
+++ b/drivers/video/g364fb.c
@@ -149,10 +149,11 @@
 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;
 }