nfsd: fix an IS_ERR() vs NULL check

The get_backchannel_cred() used to return error pointers on error but
now it returns NULL pointers.

Fixes: 97f68c6b02e0 ("SUNRPC: add 'struct cred *' to auth_cred and rpc_cre")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index c74e4538d0eb..9b38dab1c21b 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -913,9 +913,9 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c
                 return PTR_ERR(client);
         }
         cred = get_backchannel_cred(clp, client, ses);
-        if (IS_ERR(cred)) {
+        if (!cred) {
                 rpc_shutdown_client(client);
-                return PTR_ERR(cred);
+                return -ENOMEM;
         }
         clp->cl_cb_client = client;
         clp->cl_cb_cred = cred;