alpha: Avoid comma separated statements

Use semicolons and braces.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

arch/alpha/kernel/pci_iommu.c

@@ -127,10 +127,12 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena,
 			goto again;
 		}
 
-		if (ptes[p+i])
-			p = ALIGN(p + i + 1, mask + 1), i = 0;
-		else
+		if (ptes[p+i]) {
+			p = ALIGN(p + i + 1, mask + 1);
+			i = 0;
+		} else {
 			i = i + 1;
+		}
 	}
 
 	if (i < n) {