From: Pavel Shilovsky <pshilov@microsoft.com>
Date: Thu, 3 Jan 2019 16:45:13 -0800
Subject: [PATCH] CIFS: Do not set credits to 1 if the server didn't grant
anything
Git-commit: 33fa5c8b8a7dbe6353a56eaa654b790348890d42
Patch-mainline: v5.0-rc2
References: bsc#1144333
Currently we reset the number of total credits granted by the server
to 1 if the server didn't grant us anything int the response. This
violates the SMB3 protocol - we need to trust the server and use
the credit values from the response. Fix this by removing the
corresponding code.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Acked-by: Aurelien Aptel <aaptel@suse.com>
---
fs/cifs/transport.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 5be7302853b6..8e75d689be46 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -894,8 +894,6 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
for (i = 0; i < num_rqst; i++)
if (midQ[i]->resp_buf)
credits += ses->server->ops->get_credits(midQ[i]);
- if (!credits)
- credits = 1;
for (i = 0; i < num_rqst; i++) {
if (rc < 0)
--
2.16.4