ACPICA: Cosmetic changes only, no functional changes

Lint changes, fix compiler warnings, etc.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 6e56d5f..181e669 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -147,7 +147,7 @@
 
 	if (acpi_gbl_display_final_mem_stats) {
 		ACPI_STRCPY(buffer, "MEMORY");
-		acpi_db_display_statistics(buffer);
+		(void)acpi_db_display_statistics(buffer);
 	}
 #endif