diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index c041c41..a8f57c7 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -623,9 +623,10 @@
 	msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
 }
 
-static void nfs_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
+static int nfs_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
 {
 	rpc_call_start(task);
+	return 0;
 }
 
 static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
@@ -644,9 +645,10 @@
 	msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
 }
 
-static void nfs_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
+static int nfs_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
 {
 	rpc_call_start(task);
+	return 0;
 }
 
 static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)