x86, mm: Fix incorrect data type in vmalloc_sync_all()

arch/x86/mm/fault.c: In function 'vmalloc_sync_all':
arch/x86/mm/fault.c:238: warning: assignment makes integer from pointer without a cast

introduced by 617d34d9.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <20101020103642.GA3135@kryptos.osrc.amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/mm/fault.c

@@ -230,7 +230,7 @@ void vmalloc_sync_all(void)
 		spin_lock_irqsave(&pgd_lock, flags);
 		list_for_each_entry(page, &pgd_list, lru) {
 			spinlock_t *pgt_lock;
-			int ret;
+			pmd_t *ret;
 
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;