diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index c94638dc42e521d8596bdf7db5d7cde5807ab6df..f337c3f73e0c1afc15fb513780f4a3af95fa2813 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -776,7 +776,7 @@ acpi_ex_dump_operands(union acpi_operand_object **operands,
 		      const char *note,
 		      const char *module_name, u32 line_number)
 {
-	u32 i;
+	s32 i;
 
 	ACPI_FUNCTION_NAME(ex_dump_operands);