smb3: fix incorrect session setup check for multiuser mounts

A recent change to how the SMB3 server (socket) and session status
is managed regressed multiuser mounts by changing the check
for whether session setup is needed to the socket (TCP_Server_info)
structure instead of the session struct (cifs_ses). Add additional
check in cifs_setup_sesion to fix this.

Fixes: 73f9bfbe3d81 ("cifs: maintain a state machine for tcp/smb/tcon sessions")
Reported-by: Ronnie Sahlberg <[e-mail]>
Acked-by: Ronnie Sahlberg <[e-mail]>
Reviewed-by: Shyam Prasad N <[e-mail]>
Signed-off-by: Steve French <[e-mail]>

fs/cifs/connect.c

···
 
 	/* only send once per connect */
 	spin_lock(&cifs_tcp_ses_lock);
-	if (server->tcpStatus != CifsNeedSessSetup) {
+	if ((server->tcpStatus != CifsNeedSessSetup) &&
+	    (ses->status == CifsGood)) {
 		spin_unlock(&cifs_tcp_ses_lock);
 		return 0;
 	}