Re: [PATCH] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data

From: Greg KH <gregkh@linuxfoundation.org>
Date: Sun, 9 Dec 2018 17:32:45 +0100

+	} else {
 		port_spec = hso_get_config_data(interface);
+		if (IS_ERR_VALUE((long)port_spec))
+			goto exit;

'port_spec' is an 'int', it makes no sense to cast it 3 times all the
way back to 'int' to figure out if it is a negative error value or
not. (--> long --> void * --> int)