From 7f62656be8a8ef14c168db2d98021fb9c8cc1076 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:49:40 +0300
Subject: [PATCH] aio: checking for NULL instead of IS_ERR

alloc_anon_inode() returns an ERR_PTR(), it doesn't return NULL.

Fixes: 71ad7490c1f3 ('rework aio migrate pages to use aio fs')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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