NFS: Ensure that rpc_run_task() errors are propagated back to the caller

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index abf8e02..4757a2b 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -347,8 +347,9 @@
 		NFS_PROTO(inode)->read_setup(data, &msg);
 
 		task = rpc_run_task(&task_setup_data);
-		if (!IS_ERR(task))
-			rpc_put_task(task);
+		if (IS_ERR(task))
+			break;
+		rpc_put_task(task);
 
 		dprintk("NFS: %5u initiated direct read call "
 			"(req %s/%Ld, %zu bytes @ offset %Lu)\n",
@@ -763,8 +764,9 @@
 		NFS_PROTO(inode)->write_setup(data, &msg);
 
 		task = rpc_run_task(&task_setup_data);
-		if (!IS_ERR(task))
-			rpc_put_task(task);
+		if (IS_ERR(task))
+			break;
+		rpc_put_task(task);
 
 		dprintk("NFS: %5u initiated direct write call "
 			"(req %s/%Ld, %zu bytes @ offset %Lu)\n",