[IA64] Remove unnecessary cast of allocation return value in sn_hwperf_enum_objects()

vmalloc() returns a void pointer - no need to cast it.

Signed-off-by: Jesper Juhl <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/sn/kernel/sn2/sn_hwperf.c

···
 	}
 
 	sz = sn_hwperf_obj_cnt * sizeof(struct sn_hwperf_object_info);
-	if ((objbuf = (struct sn_hwperf_object_info *) vmalloc(sz)) == NULL) {
+	objbuf = vmalloc(sz);
+	if (objbuf == NULL) {
 		printk("sn_hwperf_enum_objects: vmalloc(%d) failed\n", (int)sz);
 		e = -ENOMEM;
 		goto out;