Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Use devm_clk_get() if the device parameter is not NULL - Replace 'goto l; ... l: return e;' with 'return e;' - Replace 'val = e; return val;' with 'return e;' - Replace 'if (e) { return expr; }' with 'if (e) return expr;' - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- drivers/watchdog/jz4740_wdt.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c index 20627f22baf6..1d0c85aceaab 100644 --- a/drivers/watchdog/jz4740_wdt.c +++ b/drivers/watchdog/jz4740_wdt.c @@ -178,29 +178,21 @@ static int jz4740_wdt_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); drvdata->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(drvdata->base)) { - ret = PTR_ERR(drvdata->base); - goto err_out; - } + if (IS_ERR(drvdata->base)) + return PTR_ERR(drvdata->base); - drvdata->rtc_clk = clk_get(&pdev->dev, "rtc"); + drvdata->rtc_clk = devm_clk_get(&pdev->dev, "rtc"); if (IS_ERR(drvdata->rtc_clk)) { dev_err(&pdev->dev, "cannot find RTC clock\n"); - ret = PTR_ERR(drvdata->rtc_clk); - goto err_out; + return PTR_ERR(drvdata->rtc_clk); } - ret = watchdog_register_device(&drvdata->wdt); + ret = devm_watchdog_register_device(&pdev->dev, &drvdata->wdt); if (ret < 0) - goto err_disable_clk; + return ret; platform_set_drvdata(pdev, drvdata); return 0; - -err_disable_clk: - clk_put(drvdata->rtc_clk); -err_out: - return ret; } static int jz4740_wdt_remove(struct platform_device *pdev) @@ -208,8 +200,6 @@ static int jz4740_wdt_remove(struct platform_device *pdev) struct jz4740_wdt_drvdata *drvdata = platform_get_drvdata(pdev); jz4740_wdt_stop(&drvdata->wdt); - watchdog_unregister_device(&drvdata->wdt); - clk_put(drvdata->rtc_clk); return 0; } -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
