diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.10/103-tty-ar933x_uart-convert-to-use-devm_-functions.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.10/103-tty-ar933x_uart-convert-to-use-devm_-functions.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.10/103-tty-ar933x_uart-convert-to-use-devm_-functions.patch b/target/linux/ar71xx/patches-3.10/103-tty-ar933x_uart-convert-to-use-devm_-functions.patch new file mode 100644 index 0000000000..fab6f23416 --- /dev/null +++ b/target/linux/ar71xx/patches-3.10/103-tty-ar933x_uart-convert-to-use-devm_-functions.patch @@ -0,0 +1,72 @@ +From f157945cd134e2cfa47ed9bb1f599632d112d94e Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Mon, 29 Jul 2013 19:39:20 +0200 +Subject: [PATCH] tty: ar933x_uart: convert to use devm_* functions + +Use devm_* functions in order to simplify cleanup +paths. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + drivers/tty/serial/ar933x_uart.c | 26 ++++++++------------------ + 1 file changed, 8 insertions(+), 18 deletions(-) + +--- a/drivers/tty/serial/ar933x_uart.c ++++ b/drivers/tty/serial/ar933x_uart.c +@@ -652,19 +652,18 @@ static int ar933x_uart_probe(struct plat + 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 plat + + 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) +@@ -705,11 +698,8 @@ static int ar933x_uart_remove(struct pla + up = platform_get_drvdata(pdev); + platform_set_drvdata(pdev, NULL); + +- if (up) { ++ if (up) + uart_remove_one_port(&ar933x_uart_driver, &up->port); +- iounmap(up->port.membase); +- kfree(up); +- } + + return 0; + } |