[IA64-SGI] Small cleanup for misuse of list_for_each to list_for_each_safe.

Patch was suggested by Kenneth W. Chen here

Signed-off-by: Prarit Bhargava <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/sn/kernel/io_init.c

···
 void sn_bus_free_sysdata(void)
 {
 	struct sysdata_el *element;
-	struct list_head *list;
+	struct list_head *list, *safe;
 
-sn_sysdata_free_start:
-	list_for_each(list, &sn_sysdata_list) {
+	list_for_each_safe(list, safe, &sn_sysdata_list) {
 		element = list_entry(list, struct sysdata_el, entry);
 		list_del(&element->entry);
 		list_del(&(((struct pcidev_info *)
 			     (element->sysdata))->pdi_list));
 		kfree(element->sysdata);
 		kfree(element);
-		goto sn_sysdata_free_start;
 	}
 	return;
 }