From 2a3bce8f6afb9118a7ac3c360a5baf7cdaec87bc Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Mon, 13 Aug 2012 11:00:08 -0400
Subject: [PATCH] xen/swiotlb: Fix compile warnings when using plain integer
 instead of NULL pointer.

arch/x86/xen/pci-swiotlb-xen.c:96:1: warning: Using plain integer as NULL pointer
arch/x86/xen/pci-swiotlb-xen.c:96:1: warning: Using plain integer as NULL pointer

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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