Olaf Hering: Fix sw-suspend issue

sw-suspend does not work with our kernel.
khpsbpkt will die because down_interruptible returns -EINTR on suspend.
As a result, hpsb packet delivery will not work anymore after resume.
Signed-off-by: Jody McIntyre <scjody@modernduck.com>

drivers/ieee1394/ieee1394_core.c

@@ -1030,14 +1030,18 @@ static int hpsbpkt_thread(void *__hi)
 
 	daemonize("khpsbpkt");
 
-	while (!down_interruptible(&khpsbpkt_sig)) {
-		if (khpsbpkt_kill)
-			break;
-
+	while (1) {
+		if (down_interruptible(&khpsbpkt_sig)) {
 			if (current->flags & PF_FREEZE) {
 				refrigerator(0);
 				continue;
 			}
+			printk("khpsbpkt: received unexpected signal?!\n" );
+			break;
+		}
+
+		if (khpsbpkt_kill)
+			break;
 
 		while ((skb = skb_dequeue(&hpsbpkt_queue)) != NULL) {
 			packet = (struct hpsb_packet *)skb->data;