diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index da794dcfdd92..d1efede5fbe5 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2587,7 +2587,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
  */
 static int hotkey_kthread(void *data)
 {
-	struct tp_nvram_state s[2];
+	struct tp_nvram_state s[2] = { 0 };
 	u32 poll_mask, event_mask;
 	unsigned int si, so;
 	unsigned long t;