smb: smbdirect: introduce smbdirect_socket.first_error

This will be used when a connected conection gets the first error.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: metze-samba

fs/smb/common/smbdirect/smbdirect_socket.h

@@ -83,6 +83,7 @@ enum smbdirect_keepalive_status {
 struct smbdirect_socket {
 	enum smbdirect_socket_status status;
 	wait_queue_head_t status_wait;
+	int first_error;
 
 	/*
 	 * This points to the workqueue to