cifs: smbd: Return -ECONNABORTED when trasnport is not in connected state

The transport should return this error so the upper layer will reconnect.
Signed-off-by: Long Li <longli@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/smbdirect.c

@@ -1972,7 +1972,7 @@ static int smbd_recv_buf(struct smbd_connection *info, char *buf,
 
 	if (info->transport_status != SMBD_CONNECTED) {
 		log_read(ERR, "disconnected\n");
-		return 0;
+		return -ECONNABORTED;
 	}
 
 	goto again;