summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/acpi/acpica/exregion.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 389a4121b282..f6c2f5499935 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -165,8 +165,8 @@ acpi_ex_system_memory_space_handler(u32 function,
* one page, which is similar to the original code that used a 4k
* maximum window.
*/
- page_boundary_map_length =
- ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address;
+ page_boundary_map_length = (acpi_size)
+ (ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address);
if (page_boundary_map_length == 0) {
page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
}