NFS: move dprintk after nfs_alloc_fattr in nfs3_proc_lookup

In nfs3_proc_lookup, if nfs_alloc_fattr fails, will only print
"NFS call lookup". This may be confusing, move dprintk after
nfs_alloc_fattr.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

fs/nfs/nfs3proc.c

@@ -169,11 +169,11 @@ nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
 	};
 	int			status;
 
-	dprintk("NFS call  lookup %s\n", name->name);
 	res.dir_attr = nfs_alloc_fattr();
 	if (res.dir_attr == NULL)
 		return -ENOMEM;
 
+	dprintk("NFS call  lookup %s\n", name->name);
 	nfs_fattr_init(fattr);
 	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 	nfs_refresh_inode(dir, res.dir_attr);