parisc: ioremap: Fix sparse warnings

Fix sparse warning:
	incorrect type in assignment (different base types)
	expected unsigned long [usertype] addr
	got void *addr
Signed-off-by: Helge Deller <deller@gmx.de>

arch/parisc/mm/ioremap.c

@@ -27,7 +27,7 @@
  */
 void __iomem *ioremap(unsigned long phys_addr, unsigned long size)
 {
-	void __iomem *addr;
+	uintptr_t addr;
 	struct vm_struct *area;
 	unsigned long offset, last_addr;
 	pgprot_t pgprot;
@@ -79,10 +79,9 @@ void __iomem *ioremap(unsigned long phys_addr, unsigned long size)
 	if (!area)
 		return NULL;
 
-	addr = (void __iomem *) area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		vunmap(addr);
+	addr = (uintptr_t) area->addr;
+	if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
+		vunmap(area->addr);
 		return NULL;
 	}