[PATCH] ia64: fix bug in prof_cpu_mask_read_proc()

Display of cpumask for /proc/irq/prof_cpu_mask has a botch in the print
loop - should consume 2 bytes per loop.

arch/ia64/kernel/irq.c

@@ -1039,7 +1039,7 @@ static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
 	if (count < HEX_DIGITS+1)
 		return -EINVAL;
 
-	for (k = 0; k < sizeof(cpumask_t)/sizeof(unsigned long); ++k) {
+	for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
 		int j = sprintf(page, "%04hx", (u16)cpus_coerce(*mask));
 		len += j;
 		page += j;