diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2013-07-26 16:22:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-26 16:20:24 -0700 |
| commit | 299a62575a63b19add8206642b340f1b54ec4faf (patch) | |
| tree | 9ffe739f8fd236233f00546065ebed5b50da72e5 /drivers/tty/serial | |
| parent | cf940ebe98e693aec2d10f9af2fb84eb55234e3c (diff) | |
serial8250-em: Convert to devm_* managed helpers
Replace kzalloc and clk_get by their managed counterparts to simplify
error and cleanup paths.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/8250/8250_em.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c index 916cc19fbbda..5f3bba12c159 100644 --- a/drivers/tty/serial/8250/8250_em.c +++ b/drivers/tty/serial/8250/8250_em.c @@ -95,25 +95,23 @@ static int serial8250_em_probe(struct platform_device *pdev) struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); struct serial8250_em_priv *priv; struct uart_8250_port up; - int ret = -EINVAL; + int ret; if (!regs || !irq) { dev_err(&pdev->dev, "missing registers or irq\n"); - goto err0; + return -EINVAL; } - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { dev_err(&pdev->dev, "unable to allocate private data\n"); - ret = -ENOMEM; - goto err0; + return -ENOMEM; } - priv->sclk = clk_get(&pdev->dev, "sclk"); + priv->sclk = devm_clk_get(&pdev->dev, "sclk"); if (IS_ERR(priv->sclk)) { dev_err(&pdev->dev, "unable to get clock\n"); - ret = PTR_ERR(priv->sclk); - goto err1; + return PTR_ERR(priv->sclk); } memset(&up, 0, sizeof(up)); @@ -136,20 +134,13 @@ static int serial8250_em_probe(struct platform_device *pdev) ret = serial8250_register_8250_port(&up); if (ret < 0) { dev_err(&pdev->dev, "unable to register 8250 port\n"); - goto err2; + clk_disable(priv->sclk); + return ret; } priv->line = ret; platform_set_drvdata(pdev, priv); return 0; - - err2: - clk_disable(priv->sclk); - clk_put(priv->sclk); - err1: - kfree(priv); - err0: - return ret; } static int serial8250_em_remove(struct platform_device *pdev) @@ -158,8 +149,6 @@ static int serial8250_em_remove(struct platform_device *pdev) serial8250_unregister_port(priv->line); clk_disable(priv->sclk); - clk_put(priv->sclk); - kfree(priv); return 0; } |