diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 7a57c1b..a39fbfe 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -244,7 +244,7 @@
 	 * 4-byte alignment on 32-bit kernels
 	 */
 	a = (unsigned long)kmalloc(sizeof(struct irt_entry) * num_entries + 8, GFP_KERNEL);
-	a = (a + 7) & ~7;
+	a = (a + 7UL) & ~7UL;
 	return (struct irt_entry *)a;
 }