[IA64] Remove redundant NULL checks before kfree

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index b47476d..e9b628b 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -305,13 +305,10 @@
 
 static void __cpuinit cpu_cache_sysfs_exit(unsigned int cpu)
 {
-	if (all_cpu_cache_info[cpu].cache_leaves) {
-		kfree(all_cpu_cache_info[cpu].cache_leaves);
-		all_cpu_cache_info[cpu].cache_leaves = NULL;
-	}
+	kfree(all_cpu_cache_info[cpu].cache_leaves);
+	all_cpu_cache_info[cpu].cache_leaves = NULL;
 	all_cpu_cache_info[cpu].num_cache_leaves = 0;
 	memset(&all_cpu_cache_info[cpu].kobj, 0, sizeof(struct kobject));
-
 	return;
 }