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73 lines
1.8 KiB
Diff
73 lines
1.8 KiB
Diff
From f157945cd134e2cfa47ed9bb1f599632d112d94e Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Mon, 29 Jul 2013 19:39:20 +0200
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Subject: [PATCH] tty: ar933x_uart: convert to use devm_* functions
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Use devm_* functions in order to simplify cleanup
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paths.
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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---
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drivers/tty/serial/ar933x_uart.c | 26 ++++++++------------------
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1 file changed, 8 insertions(+), 18 deletions(-)
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--- a/drivers/tty/serial/ar933x_uart.c
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+++ b/drivers/tty/serial/ar933x_uart.c
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@@ -652,19 +652,18 @@ static int ar933x_uart_probe(struct plat
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return -EINVAL;
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}
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- up = kzalloc(sizeof(struct ar933x_uart_port), GFP_KERNEL);
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+ up = devm_kzalloc(&pdev->dev, sizeof(struct ar933x_uart_port),
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+ GFP_KERNEL);
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if (!up)
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return -ENOMEM;
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port = &up->port;
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- port->mapbase = mem_res->start;
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- port->membase = ioremap(mem_res->start, AR933X_UART_REGS_SIZE);
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- if (!port->membase) {
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- ret = -ENOMEM;
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- goto err_free_up;
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- }
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+ port->membase = devm_ioremap_resource(&pdev->dev, mem_res);
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+ if (IS_ERR(port->membase))
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+ return PTR_ERR(port->membase);
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+ port->mapbase = mem_res->start;
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port->line = id;
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port->irq = irq_res->start;
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port->dev = &pdev->dev;
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@@ -686,16 +685,10 @@ static int ar933x_uart_probe(struct plat
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ret = uart_add_one_port(&ar933x_uart_driver, &up->port);
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if (ret)
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- goto err_unmap;
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+ return ret;
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platform_set_drvdata(pdev, up);
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return 0;
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-
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-err_unmap:
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- iounmap(up->port.membase);
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-err_free_up:
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- kfree(up);
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- return ret;
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}
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static int ar933x_uart_remove(struct platform_device *pdev)
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@@ -705,11 +698,8 @@ static int ar933x_uart_remove(struct pla
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up = platform_get_drvdata(pdev);
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platform_set_drvdata(pdev, NULL);
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- if (up) {
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+ if (up)
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uart_remove_one_port(&ar933x_uart_driver, &up->port);
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- iounmap(up->port.membase);
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- kfree(up);
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- }
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return 0;
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}
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