diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 020c5830c37..fd3d2a7a1a2 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -144,6 +144,7 @@ static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
 	}
 
 	BUG();
+	return 0;
 }
 
 static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,