NFS: fix the return value check by using IS_ERR

In case of error, the function rpcauth_create() returns ERR_PTR()
and never returns NULL pointer. The NULL test in the return value
check should be replaced with IS_ERR().

dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 017b4b01a69c..398d5fd74157 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -205,7 +205,7 @@ struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *clnt, struct inode *ino
                 return clone;
 
         auth = rpcauth_create(flavor, clone);
-        if (!auth) {
+        if (IS_ERR(auth)) {
                 rpc_shutdown_client(clone);
                 clone = ERR_PTR(-EIO);
         }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1e50326d00dd..ddfebb128017 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2399,7 +2399,7 @@ static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandl
         int ret;
 
         auth = rpcauth_create(flavor, server->client);
-        if (!auth) {
+        if (IS_ERR(auth)) {
                 ret = -EIO;
                 goto out;
         }