[PATCH] RPC: Make rpc_create_client() destroy the transport on failure.

 This saves us a couple of lines of cleanup code for each call.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

fs/lockd/host.c

@@ -193,10 +193,8 @@ nlm_bind_host(struct nlm_host *host)
 		/* Existing NLM servers accept AUTH_UNIX only */
 		clnt = rpc_create_client(xprt, host->h_name, &nlm_program,
 					host->h_version, RPC_AUTH_UNIX);
-		if (IS_ERR(clnt)) {
-			xprt_destroy(xprt);
+		if (IS_ERR(clnt))
 			goto forgetit;
-		}
 		clnt->cl_autobind = 1;	/* turn on pmap queries */
 		xprt->nocong = 1;	/* No congestion control for NLM */
 		xprt->resvport = 1;	/* NLM requires a reserved port */

fs/lockd/mon.c

@@ -120,15 +120,14 @@ nsm_create(void)
 				&nsm_program, SM_VERSION,
 				RPC_AUTH_NULL);
 	if (IS_ERR(clnt))
-		goto out_destroy;
+		goto out_err;
 	clnt->cl_softrtry = 1;
 	clnt->cl_chatty   = 1;
 	clnt->cl_oneshot  = 1;
 	xprt->resvport = 1;	/* NSM requires a reserved port */
 	return clnt;
 
-out_destroy:
-	xprt_destroy(xprt);
+out_err:
 	return clnt;
 }
 

fs/nfs/inode.c

@@ -383,7 +383,6 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
 	return clnt;
 
 out_fail:
-	xprt_destroy(xprt);
 	return clnt;
 }
 
@@ -1623,7 +1622,6 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
 		if (IS_ERR(clnt)) {
 			up_write(&clp->cl_sem);
 			printk(KERN_WARNING "NFS: cannot create RPC client.\n");
-			xprt_destroy(xprt);
 			err = PTR_ERR(clnt);
 			goto out_fail;
 		}

fs/nfs/mount_clnt.c

@@ -80,9 +80,7 @@ mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
 	clnt = rpc_create_client(xprt, hostname,
 				&mnt_program, version,
 				RPC_AUTH_UNIX);
-	if (IS_ERR(clnt)) {
-		xprt_destroy(xprt);
-	} else {
+	if (!IS_ERR(clnt)) {
 		clnt->cl_softrtry = 1;
 		clnt->cl_chatty   = 1;
 		clnt->cl_oneshot  = 1;

fs/nfsd/nfs4callback.c

@@ -430,7 +430,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	clnt = rpc_create_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
 	if (IS_ERR(clnt)) {
 		dprintk("NFSD: couldn't create callback client\n");
-		goto out_xprt;
+		goto out_err;
 	}
 	clnt->cl_intr = 0;
 	clnt->cl_softrtry = 1;
@@ -465,8 +465,6 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 out_clnt:
 	rpc_shutdown_client(clnt);
 	goto out_err;
-out_xprt:
-	xprt_destroy(xprt);
 out_err:
 	dprintk("NFSD: warning: no callback path to client %.*s\n",
 		(int)clp->cl_name.len, clp->cl_name.data);

net/sunrpc/clnt.c

@@ -178,6 +178,7 @@ rpc_create_client(struct rpc_xprt *xprt, char *servname,
 		kfree(clnt->cl_server);
 	kfree(clnt);
 out_err:
+	xprt_destroy(xprt);
 	return ERR_PTR(err);
 }
 

net/sunrpc/pmap_clnt.c

@@ -210,9 +210,7 @@ pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto)
 	clnt = rpc_create_client(xprt, hostname,
 				&pmap_program, RPC_PMAP_VERSION,
 				RPC_AUTH_UNIX);
-	if (IS_ERR(clnt)) {
-		xprt_destroy(xprt);
-	} else {
+	if (!IS_ERR(clnt)) {
 		clnt->cl_softrtry = 1;
 		clnt->cl_chatty   = 1;
 		clnt->cl_oneshot  = 1;

net/sunrpc/sunrpc_syms.c

@@ -61,7 +61,6 @@ EXPORT_SYMBOL(rpc_mkpipe);
 
 /* Client transport */
 EXPORT_SYMBOL(xprt_create_proto);
-EXPORT_SYMBOL(xprt_destroy);
 EXPORT_SYMBOL(xprt_set_timeout);
 EXPORT_SYMBOL(xprt_udp_slot_table_entries);
 EXPORT_SYMBOL(xprt_tcp_slot_table_entries);