From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Sun, 30 Apr 2017 16:21:16 -0700
Patch-mainline: v4.13-rc1
Subject: Drivers: hv: vmbus: Fix error code returned by vmbus_post_msg()
Git-commit: 48f4ccdfc46906627f77fda94d80f2db1bd23ba3
References: fate#323887

ENOBUFS is a more approrpiate error code to be returned
when the hypervisor cannot post the message because of
insufficient buffers. Make the adjustment.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Olaf Hering <ohering@suse.de>
---
 drivers/hv/connection.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -370,7 +370,7 @@ int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep)
 			break;
 		case HV_STATUS_INSUFFICIENT_MEMORY:
 		case HV_STATUS_INSUFFICIENT_BUFFERS:
-			ret = -ENOMEM;
+			ret = -ENOBUFS;
 			break;
 		case HV_STATUS_SUCCESS:
 			return ret;