diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 361b78d76759..7409ebb33c47 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -191,14 +191,12 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
 }
 EXPORT_SYMBOL_GPL(i2c_add_mux_adapter);
 
-int i2c_del_mux_adapter(struct i2c_adapter *adap)
+void i2c_del_mux_adapter(struct i2c_adapter *adap)
 {
 	struct i2c_mux_priv *priv = adap->algo_data;
 
 	i2c_del_adapter(adap);
 	kfree(priv);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(i2c_del_mux_adapter);
 
diff --git a/include/linux/i2c-mux.h b/include/linux/i2c-mux.h
index 40cb05a97b46..b5f9a007a3ab 100644
--- a/include/linux/i2c-mux.h
+++ b/include/linux/i2c-mux.h
@@ -42,7 +42,7 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
 				int (*deselect) (struct i2c_adapter *,
 						 void *mux_dev, u32 chan_id));
 
-int i2c_del_mux_adapter(struct i2c_adapter *adap);
+void i2c_del_mux_adapter(struct i2c_adapter *adap);
 
 #endif /* __KERNEL__ */