diff options
| author | Tony Prisk <linux@prisktech.co.nz> | 2013-01-18 03:05:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-18 03:54:33 +0100 |
| commit | 49abd90c4bb7b35e84c430dbba6b6368786fbf62 (patch) | |
| tree | 3256955920819a65de0dfc361f9b8e0cadcf919b | |
| parent | serial: vt8500: UART uses gated clock rather than 24Mhz reference (diff) | |
| download | linux-49abd90c4bb7b35e84c430dbba6b6368786fbf62.tar.xz linux-49abd90c4bb7b35e84c430dbba6b6368786fbf62.zip | |
serial: vt8500: Cleanup code using devm_ function
Convert the last memory allocation (vt8500_port) to use devm_kzalloc
and remove the fail path cleanup code from vt8500_serial_probe.
Reorder iomem mapping above clk_enable to simplify fail code. The
clock is only enabled if all other resources are available.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/vt8500_serial.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 798bf944a2e5..5fb59c53abf9 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -580,7 +580,8 @@ static int vt8500_serial_probe(struct platform_device *pdev) return -EBUSY; } - vt8500_port = kzalloc(sizeof(struct vt8500_port), GFP_KERNEL); + vt8500_port = devm_kzalloc(&pdev->dev, sizeof(struct vt8500_port), + GFP_KERNEL); if (!vt8500_port) return -ENOMEM; @@ -591,14 +592,13 @@ static int vt8500_serial_probe(struct platform_device *pdev) vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0); if (IS_ERR(vt8500_port->clk)) { dev_err(&pdev->dev, "failed to get clock\n"); - ret = -EINVAL; - goto err; + return -EINVAL; } ret = clk_prepare_enable(vt8500_port->clk); if (ret) { dev_err(&pdev->dev, "failed to enable clock\n"); - goto err; + return ret; } vt8500_port->uart.type = PORT_VT8500; @@ -622,10 +622,6 @@ static int vt8500_serial_probe(struct platform_device *pdev) platform_set_drvdata(pdev, vt8500_port); return 0; - -err: - kfree(vt8500_port); - return ret; } static int vt8500_serial_remove(struct platform_device *pdev) @@ -635,7 +631,6 @@ static int vt8500_serial_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); clk_disable_unprepare(vt8500_port->clk); uart_remove_one_port(&vt8500_uart_driver, &vt8500_port->uart); - kfree(vt8500_port); return 0; } |