FAILED: patch "[PATCH] SUNRPC fix regression in umount of a secure mount" failed to apply to 4.9-stable tree

The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From ec6017d9035986a36de064f48a63245930bfad6f Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <[email protected]>
Date: Wed, 29 May 2019 10:46:00 -0400
Subject: [PATCH] SUNRPC fix regression in umount of a secure mount

If call_status returns ENOTCONN, we need to re-establish the connection state after. Otherwise the client goes into an infinite loop of call_encode, call_transmit, call_status (ENOTCONN), call_encode.

index d6e57da56c94..94a653be8e25 100644
@@ -2288,13 +2288,13 @@ call_status(struct rpc_task *task)
 	case -ECONNREFUSED:
 	case -ECONNRESET:
 	case -ECONNABORTED:
+	case -ENOTCONN:
 		rpc_force_rebind(clnt);
 		/* fall through */
 	case -EADDRINUSE:
 		rpc_delay(task, 3*HZ);
 		/* fall through */
 	case -EPIPE:
-	case -ENOTCONN:
 	case -EAGAIN:
 		break;
 	case -EIO: