diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index a0cc5ef4f06f01..799644c3888c6b 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -211,7 +211,7 @@ static int acpi_processor_suspend(void)
 
 static void acpi_processor_resume(void)
 {
-	u32 resumed_bm_rld;
+	u32 resumed_bm_rld = 0;
 
 	acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld);
 	if (resumed_bm_rld == saved_bm_rld)