--- a/arch/mips/ar231x/reset.c
+++ b/arch/mips/ar231x/reset.c
@@ -19,6 +19,7 @@
 	struct work_struct wq;
 	int set;
 	unsigned long jiffies;
+	unsigned long jiffies_prev;
 };
 
 static struct timer_list rst_button_timer;
@@ -68,7 +69,7 @@
 	add_msg(skb, "SUBSYSTEM=button");
 	add_msg(skb, "BUTTON=reset");
 	add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
-	sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);
+	sprintf(buf, "SEEN=%lu", (event->jiffies - event->jiffies_prev)/HZ);
 	add_msg(skb, buf);
 	snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 	add_msg(skb, buf);
@@ -127,6 +128,7 @@
 		no_release_workaround = 0;
 
 	event->jiffies = jiffies;
+	event->jiffies_prev = seen;
 
 	INIT_WORK(&event->wq, hotplug_button);
 	schedule_work(&event->wq);