linux-kernel - [PATCH v2 39/45] drivers: tty: serial: efm32-uart: use devm

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Date:   Thu, 14 Mar 2019 23:34:09 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     gregkh@...uxfoundation.org, eric@...olt.net,
        stefan.wahren@...e.com, f.fainelli@...il.com, rjui@...adcom.com,
        sbranden@...adcom.com, bcm-kernel-feedback-list@...adcom.com,
        andriy.shevchenko@...ux.intel.com, vz@...ia.com,
        matthias.bgg@...il.com, yamada.masahiro@...ionext.com,
        tklauser@...tanz.ch, richard.genoud@...il.com,
        macro@...ux-mips.org, u.kleine-koenig@...gutronix.de,
        kernel@...gutronix.de, slemieux.tyco@...il.com,
        andy.gross@...aro.org, david.brown@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, festevam@...il.com, linux-imx@....com,
        baohua@...nel.org, jacmet@...site.dk, linux-serial@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v2 39/45] drivers: tty: serial: efm32-uart: use devm_* functions

Use the safer devm versions of memory mapping functions.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 drivers/tty/serial/efm32-uart.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index d6b5e54..a79cadc 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -437,7 +437,7 @@ static void efm32_uart_release_port(struct uart_port *port)
 
 	clk_unprepare(efm_port->clk);
 	clk_put(efm_port->clk);
-	iounmap(port->membase);
+	devm_iounmap(port->dev, port->membase);
 }
 
 static int efm32_uart_request_port(struct uart_port *port)
@@ -445,7 +445,7 @@ static int efm32_uart_request_port(struct uart_port *port)
 	struct efm32_uart_port *efm_port = to_efm_port(port);
 	int ret;
 
-	port->membase = ioremap(port->mapbase, 60);
+	port->membase = devm_ioremap(port->dev, port->mapbase, 60);
 	if (!efm_port->port.membase) {
 		ret = -ENOMEM;
 		efm_debug(efm_port, "failed to remap\n");
@@ -464,7 +464,7 @@ static int efm32_uart_request_port(struct uart_port *port)
 		clk_put(efm_port->clk);
 err_clk_get:
 
-		iounmap(port->membase);
+		devm_iounmap(port->dev, port->membase);
 err_ioremap:
 		return ret;
 	}
-- 
1.9.1