serial: altera_jtaguart: adding iounmap()

khoroshilov · gregkh · commit 5c9d6abed9e0 · 2017-05-18T16:43:55.000+02:00
The driver does ioremap(port-&gt;mapbase, ALTERA_JTAGUART_SIZE),
but there is no any iounmap().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov &lt;khoroshilov@ispras.ru&gt;
Acked-by: Tobias Klauser &lt;tklauser@distanz.ch&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
@@ -478,6 +478,7 @@ static int altera_jtaguart_remove(struct platform_device *pdev)
 
 	port = &altera_jtaguart_ports[i].port;
 	uart_remove_one_port(&altera_jtaguart_driver, port);
+	iounmap(port->membase);
 
 	return 0;
 }

Original file line number	Diff line number	Diff line change
`@@ -478,6 +478,7 @@ static int altera_jtaguart_remove(struct platform_device *pdev)`
`478`	`478`
`479`	`479`	`port = &altera_jtaguart_ports[i].port;`
`480`	`480`	`uart_remove_one_port(&altera_jtaguart_driver, port);`
	`481`	`+ iounmap(port->membase);`
`481`	`482`
`482`	`483`	`return 0;`
`483`	`484`	`}`