diff --git a/drivers/nvmem/lan9662-otpc.c b/drivers/nvmem/lan9662-otpc.c
index 377bf34c2946..56fc19f092a7 100644
--- a/drivers/nvmem/lan9662-otpc.c
+++ b/drivers/nvmem/lan9662-otpc.c
@@ -36,7 +36,7 @@ struct lan9662_otp {
 	void __iomem *base;
 };
 
-static bool lan9662_otp_wait_flag_clear(void __iomem *reg, u32 flag)
+static int lan9662_otp_wait_flag_clear(void __iomem *reg, u32 flag)
 {
 	u32 val;