diff -dwup3 -x *svn* -r c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\hw\mlx4\kernel\hca\pd.c .\hw\mlx4\kernel\hca\pd.c
--- c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\hw\mlx4\kernel\hca\pd.c	Thu May 31 11:22:19 2012
+++ .\hw\mlx4\kernel\hca\pd.c	Wed May 23 18:26:47 2012
@@ -78,9 +78,8 @@ mlnx_allocate_pd (
 				0, sizeof(p_resp->pdn));
 		}
 		else {
-			u32 pdn;
-			INIT_UDATA(&udata, NULL, &pdn, 
-				0, sizeof(pdn));
+            // Discard PDN output, so use status as temp storage.
+            INIT_UDATA(&udata, NULL, &status, 0, sizeof(status));
 		}
 	}
 	else {