From 409e553deeeb08d644ed1110e0f1c97b71cb6409 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 10 Jun 2015 13:59:27 +0300
Subject: [PATCH] iommu: Checking for NULL instead of IS_ERR

The iommu_group_alloc() and iommu_group_get_for_dev()
functions return error pointers, they never return NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
Reading git-format-patch failed