Commit a324e4de authored by Gabor Juhos's avatar Gabor Juhos Committed by Greg Kroah-Hartman

tty: ar933x_uart: convert to use devm_* functions

Use devm_* functions in order to simplify cleanup
paths.
Signed-off-by: default avatarGabor Juhos <juhosg@openwrt.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent aefceaf4
......@@ -652,19 +652,18 @@ static int ar933x_uart_probe(struct platform_device *pdev)
return -EINVAL;
}
up = kzalloc(sizeof(struct ar933x_uart_port), GFP_KERNEL);
up = devm_kzalloc(&pdev->dev, sizeof(struct ar933x_uart_port),
GFP_KERNEL);
if (!up)
return -ENOMEM;
port = &up->port;
port->mapbase = mem_res->start;
port->membase = ioremap(mem_res->start, AR933X_UART_REGS_SIZE);
if (!port->membase) {
ret = -ENOMEM;
goto err_free_up;
}
port->membase = devm_ioremap_resource(&pdev->dev, mem_res);
if (IS_ERR(port->membase))
return PTR_ERR(port->membase);
port->mapbase = mem_res->start;
port->line = id;
port->irq = irq_res->start;
port->dev = &pdev->dev;
......@@ -686,16 +685,10 @@ static int ar933x_uart_probe(struct platform_device *pdev)
ret = uart_add_one_port(&ar933x_uart_driver, &up->port);
if (ret)
goto err_unmap;
return ret;
platform_set_drvdata(pdev, up);
return 0;
err_unmap:
iounmap(up->port.membase);
err_free_up:
kfree(up);
return ret;
}
static int ar933x_uart_remove(struct platform_device *pdev)
......@@ -704,11 +697,8 @@ static int ar933x_uart_remove(struct platform_device *pdev)
up = platform_get_drvdata(pdev);
if (up) {
if (up)
uart_remove_one_port(&ar933x_uart_driver, &up->port);
iounmap(up->port.membase);
kfree(up);
}
return 0;
}
......
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