[PATCH] type typo in do_softirq

kernel/softirq.c :: do_softirq() has a typo in the type of the `cpu'
value.  I incorrectly set it to `unsigned long' in a previous patch...
this is a CPU value not a bitmask and is thus an `int'.

kernel/softirq.c

@@ -61,7 +61,7 @@ static inline void wakeup_softirqd(unsigned cpu)
 
 asmlinkage void do_softirq()
 {
-	unsigned long cpu;
+	int cpu;
 	__u32 pending;
 	long flags;
 	__u32 mask;