From: Shyam Prasad N <sprasad@microsoft.com>
Date: Tue, 31 May 2022 12:31:05 +0000 (+0000)
Subject: cifs: return errors during session setup during reconnects
X-Git-Tag: baikal/aarch64/sdk6.1~3736^2~1
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=503364ef07732aa77d5515f7757084250c9851ca;p=kernel.git

cifs: return errors during session setup during reconnects

During reconnects, we check the return value from
cifs_negotiate_protocol, and have handlers for both success
and failures. But if that passes, and cifs_setup_session
returns any errors other than -EACCES, we do not handle
that. This fix adds a handler for that, so that we don't
go ahead and try a tree_connect on a failed session.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 0e8c852495791..eaf975f1ad893 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -288,6 +288,9 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 			mutex_unlock(&ses->session_mutex);
 			rc = -EHOSTDOWN;
 			goto failed;
+		} else if (rc) {
+			mutex_unlock(&ses->session_mutex);
+			goto out;
 		}
 	} else {
 		mutex_unlock(&ses->session_mutex);