Patchwork [v2,22/45] drivers: tty: serial: altera_uart: use devm_* functions

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Submitter Enrico Weigelt, metux IT consult
Date March 14, 2019, 10:33 p.m.
Message ID <1552602855-26086-23-git-send-email-info@metux.net>
Download mbox | patch
Permalink /patch/749103/
State New
Headers show

Comments

Enrico Weigelt, metux IT consult - March 14, 2019, 10:33 p.m.
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@metux.net>
---
 drivers/tty/serial/altera_uart.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch

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;