CIFS: Do not set credits to 1 if the server didn't grant anything

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>
This commit is contained in:
Pavel Shilovsky 2019-01-03 16:45:13 -08:00 committed by Steve French
parent b983f7e923
commit 33fa5c8b8a

View File

@ -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)