[PATCH v2 44/45] drivers: tty: serial: pnx8xxx_uart: use devm_* functions

[Enrico Weigelt, metux IT consult]

Use the safer devm versions of memory mapping functions.

Signed-off-by: Enrico Weigelt, metux IT consult <info@xxxxxxxxx>
---
 drivers/tty/serial/pnx8xxx_uart.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c
index 223a949..3951226 100644
--- a/drivers/tty/serial/pnx8xxx_uart.c
+++ b/drivers/tty/serial/pnx8xxx_uart.c
@@ -568,10 +568,7 @@ static const char *pnx8xxx_type(struct uart_port *port)
  */
 static void pnx8xxx_release_port(struct uart_port *port)
 {
-	struct pnx8xxx_port *sport =
-		container_of(port, struct pnx8xxx_port, port);
-
-	release_mem_region(sport->port.mapbase, UART_PORT_SIZE);
+	devm_release_mem_region(port->dev, port->mapbase, UART_PORT_SIZE);
 }
 
 /*
@@ -579,9 +576,7 @@ static void pnx8xxx_release_port(struct uart_port *port)
  */
 static int pnx8xxx_request_port(struct uart_port *port)
 {
-	struct pnx8xxx_port *sport =
-		container_of(port, struct pnx8xxx_port, port);
-	return request_mem_region(sport->port.mapbase, UART_PORT_SIZE,
+	return devm_request_mem_region(port->dev, port->mapbase, UART_PORT_SIZE,
 			"pnx8xxx-uart") != NULL ? 0 : -EBUSY;
 }
 
-- 
1.9.1