linux-kernel - [PATCH v2 22/45] drivers: tty: serial: altera_uart: use devm

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Message-Id: <1552602855-26086-23-git-send-email-info@metux.net>
Date:   Thu, 14 Mar 2019 23:33:52 +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 22/45] drivers: tty: serial: altera_uart: use devm_* functions

Use the safer devm versions of memory mapping functions.
The iounmap() call isn't necessary anymore, as devm will clean up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 drivers/tty/serial/altera_uart.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 0e487ce..d4f7150 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -595,7 +595,9 @@ static int altera_uart_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	port->membase = ioremap(port->mapbase, ALTERA_UART_SIZE);
+	port->membase = devm_ioremap(port->dev,
+				     port->mapbase,
+				     ALTERA_UART_SIZE);
 	if (!port->membase)
 		return -ENOMEM;
 
@@ -625,7 +627,6 @@ static int altera_uart_remove(struct platform_device *pdev)
 	if (port) {
 		uart_remove_one_port(&altera_uart_driver, port);
 		port->mapbase = 0;
-		iounmap(port->membase);
 	}
 
 	return 0;
-- 
1.9.1