From 1418bf076d08edd47a610ea3844c6f6012949a51 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 26 Jan 2016 12:24:44 +0300
Subject: ceph: checking for IS_ERR instead of NULL

ceph_osdc_alloc_request() returns NULL on error, it never returns error
pointers.

Fixes: 5be0389dac66 ('ceph: re-send AIO write request when getting -EOLDSNAP error')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
 fs/ceph/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 86a9c383955e..7c85ddef68ab 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -698,8 +698,8 @@ static void ceph_aio_retry_work(struct work_struct *work)
 
 	req = ceph_osdc_alloc_request(orig_req->r_osdc, snapc, 2,
 			false, GFP_NOFS);
-	if (IS_ERR(req)) {
-		ret = PTR_ERR(req);
+	if (!req) {
+		ret = -ENOMEM;
 		req = orig_req;
 		goto out;
 	}
-- 
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