ACPI: Use resource_size() in osl.c

Use the resource_size() function instead of explicit computation.

[rjw: Subject and changelog]
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 586e7e993d3d..4d31748faca3 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1555,7 +1555,7 @@ int acpi_check_resource_conflict(const struct resource *res)
         else
                 space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
 
-        length = res->end - res->start + 1;
+        length = resource_size(res);
         if (acpi_enforce_resources != ENFORCE_RESOURCES_NO)
                 warn = 1;
         clash = acpi_check_address_range(space_id, res->start, length, warn);