nfsd4: set cb_client inside setup_callback_client

This is just a minor code simplification.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 049f052..4788d09 100644 (file)
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -366,7 +366,7 @@ static int max_cb_time(void)
 /* Reference counting, callback cleanup, etc., all look racy as heck.
  * And why is cb_set an atomic? */
 
-static struct rpc_clnt *setup_callback_client(struct nfs4_client *clp)
+int setup_callback_client(struct nfs4_client *clp)
 {
        struct sockaddr_in      addr;
        struct nfs4_callback    *cb = &clp->cl_callback;
@@ -389,7 +389,7 @@ static struct rpc_clnt *setup_callback_client(struct nfs4_client *clp)
        struct rpc_clnt *client;
 
        if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
-               return ERR_PTR(-EINVAL);
+               return -EINVAL;
 
        /* Initialize address */
        memset(&addr, 0, sizeof(addr));
@@ -399,10 +399,13 @@ static struct rpc_clnt *setup_callback_client(struct nfs4_client *clp)
 
        /* Create RPC client */
        client = rpc_create(&args);
-       if (IS_ERR(client))
+       if (IS_ERR(client)) {
                dprintk("NFSD: couldn't create callback client: %ld\n",
                        PTR_ERR(client));
-       return client;
+               return PTR_ERR(client);
+       }
+       cb->cb_client = client;
+       return 0;
 
 }
 
@@ -414,28 +417,23 @@ static int do_probe_callback(void *data)
                .rpc_proc       = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
                .rpc_argp       = clp,
        };
-       struct rpc_clnt *client;
        int status;
 
-       client = setup_callback_client(clp);
-       if (IS_ERR(client)) {
-               status = PTR_ERR(client);
-               dprintk("NFSD: couldn't create callback client: %d\n",
-                                                               status);
+       status = setup_callback_client(clp);
+       if (status)
                goto out_err;
-       }
 
-       status = rpc_call_sync(client, &msg, RPC_TASK_SOFT);
+       status = rpc_call_sync(cb->cb_client, &msg, RPC_TASK_SOFT);
 
        if (status)
                goto out_release_client;
 
-       cb->cb_client = client;
        atomic_set(&cb->cb_set, 1);
        put_nfs4_client(clp);
        return 0;
 out_release_client:
-       rpc_shutdown_client(client);
+       rpc_shutdown_client(cb->cb_client);
+       cb->cb_client = NULL;
 out_err:
        dprintk("NFSD: warning: no callback path to client %.*s: error %d\n",
                (int)clp->cl_name.len, clp->cl_name.data, status);