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-rw-r--r--include/asm-um/pgtable.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index 616d02b57ea9..ac64eb955868 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -138,7 +138,7 @@ extern unsigned long pg0[1024];
#define pte_clear(mm,addr,xp) pte_set_val(*(xp), (phys_t) 0, __pgprot(_PAGE_NEWPAGE))
-#define pmd_none(x) (!(pmd_val(x) & ~_PAGE_NEWPAGE))
+#define pmd_none(x) (!((unsigned long)pmd_val(x) & ~_PAGE_NEWPAGE))
#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
#define pmd_clear(xp) do { pmd_val(*(xp)) = _PAGE_NEWPAGE; } while (0)