[PATCH] USB: Fix from Jeff and Pete to keep khubd from being able to be killed by a signal

drivers/usb/core/hub.c

@@ -1085,6 +1085,12 @@ static int usb_hub_thread(void *__hub)
 
 	daemonize();
 
+	/* keep others from killing us */
+	spin_lock_irq(&current->sig->siglock);
+	sigemptyset(&current->blocked);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sig->siglock);
+
 	/* Setup a nice name */
 	strcpy(current->comm, "khubd");