From: Dan Carpenter <error27@gmail.com>
Date: Thu, 19 Aug 2010 09:39:57 +0000 (+0200)
Subject: drm: fix end of loop test
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=161c48100236916e98d33a9c8b5fc8eae6decd15;p=linux-beck.git

drm: fix end of loop test

"agpmem" is never NULL here because it is the list cursor of a
list_for_each_entry() list.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 3778360eceea..fda67468e603 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -138,7 +138,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 				break;
 		}
 
-		if (!agpmem)
+		if (&agpmem->head == &dev->agp->memory)
 			goto vm_fault_error;
 
 		/*