ma35d1serial_probe() maps up->port.membase with ioremap(), but
ma35d1serial_remove() does not perform the matching iounmap(). The probe
error path already releases this mapping after disabling the clock.

Add iounmap() to the remove path after clk_disable_unprepare() to match
the resource cleanup order used by ma35d1serial_probe().

Fixes: 930cbf92db01 ("tty: serial: Add Nuvoton ma35d1 serial driver support")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
---
 drivers/tty/serial/ma35d1_serial.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c
index 920fe7ff5083..e5eaaf154911 100644
--- a/drivers/tty/serial/ma35d1_serial.c
+++ b/drivers/tty/serial/ma35d1_serial.c
@@ -770,6 +770,7 @@ static void ma35d1serial_remove(struct platform_device *dev)
 
 	uart_remove_one_port(&ma35d1serial_reg, port);
 	clk_disable_unprepare(up->clk);
+	iounmap(up->port.membase);
 }
 
 static int ma35d1serial_suspend(struct platform_device *dev, pm_message_t state)

base-commit: f03c39de3a1307371a4032757cd1732e91087c7d
-- 
2.43.0