ACPI: Fix logic for removing mappings in 'acpi_unmap'

Make sure the removal of mappings uses the same logic that put the
mappings in place.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 412a1e0..5aef087 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -347,7 +347,7 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
        unsigned long pfn;
 
        pfn = pg_off >> PAGE_SHIFT;
-       if (page_is_ram(pfn))
+       if (should_use_kmap(pfn))
                kunmap(pfn_to_page(pfn));
        else
                iounmap(vaddr);