rtc: rtc-sh: use devm_*() functions
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
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fac42b414a
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0209affa6e
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@ -593,7 +593,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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char clk_name[6];
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int clk_id, ret;
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rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL);
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rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
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if (unlikely(!rtc))
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return -ENOMEM;
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@ -602,9 +602,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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/* get periodic/carry/alarm irqs */
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ret = platform_get_irq(pdev, 0);
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if (unlikely(ret <= 0)) {
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ret = -ENOENT;
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dev_err(&pdev->dev, "No IRQ resource\n");
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goto err_badres;
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return -ENOENT;
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}
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rtc->periodic_irq = ret;
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@ -613,24 +612,21 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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res = platform_get_resource(pdev, IORESOURCE_IO, 0);
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if (unlikely(res == NULL)) {
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ret = -ENOENT;
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dev_err(&pdev->dev, "No IO resource\n");
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goto err_badres;
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return -ENOENT;
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}
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rtc->regsize = resource_size(res);
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rtc->res = request_mem_region(res->start, rtc->regsize, pdev->name);
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if (unlikely(!rtc->res)) {
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ret = -EBUSY;
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goto err_badres;
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}
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rtc->res = devm_request_mem_region(&pdev->dev, res->start,
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rtc->regsize, pdev->name);
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if (unlikely(!rtc->res))
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return -EBUSY;
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rtc->regbase = ioremap_nocache(rtc->res->start, rtc->regsize);
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if (unlikely(!rtc->regbase)) {
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ret = -EINVAL;
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goto err_badmap;
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}
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rtc->regbase = devm_ioremap_nocache(&pdev->dev, rtc->res->start,
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rtc->regsize);
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if (unlikely(!rtc->regbase))
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return -EINVAL;
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clk_id = pdev->id;
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/* With a single device, the clock id is still "rtc0" */
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@ -639,7 +635,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
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rtc->clk = clk_get(&pdev->dev, clk_name);
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rtc->clk = devm_clk_get(&pdev->dev, clk_name);
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if (IS_ERR(rtc->clk)) {
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/*
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* No error handling for rtc->clk intentionally, not all
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@ -665,8 +661,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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if (rtc->carry_irq <= 0) {
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/* register shared periodic/carry/alarm irq */
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ret = request_irq(rtc->periodic_irq, sh_rtc_shared,
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0, "sh-rtc", rtc);
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ret = devm_request_irq(&pdev->dev, rtc->periodic_irq,
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sh_rtc_shared, 0, "sh-rtc", rtc);
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if (unlikely(ret)) {
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dev_err(&pdev->dev,
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"request IRQ failed with %d, IRQ %d\n", ret,
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@ -675,8 +671,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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}
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} else {
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/* register periodic/carry/alarm irqs */
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ret = request_irq(rtc->periodic_irq, sh_rtc_periodic,
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0, "sh-rtc period", rtc);
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ret = devm_request_irq(&pdev->dev, rtc->periodic_irq,
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sh_rtc_periodic, 0, "sh-rtc period", rtc);
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if (unlikely(ret)) {
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dev_err(&pdev->dev,
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"request period IRQ failed with %d, IRQ %d\n",
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@ -684,24 +680,21 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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goto err_unmap;
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}
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ret = request_irq(rtc->carry_irq, sh_rtc_interrupt,
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0, "sh-rtc carry", rtc);
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ret = devm_request_irq(&pdev->dev, rtc->carry_irq,
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sh_rtc_interrupt, 0, "sh-rtc carry", rtc);
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if (unlikely(ret)) {
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dev_err(&pdev->dev,
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"request carry IRQ failed with %d, IRQ %d\n",
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ret, rtc->carry_irq);
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free_irq(rtc->periodic_irq, rtc);
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goto err_unmap;
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}
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ret = request_irq(rtc->alarm_irq, sh_rtc_alarm,
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0, "sh-rtc alarm", rtc);
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ret = devm_request_irq(&pdev->dev, rtc->alarm_irq,
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sh_rtc_alarm, 0, "sh-rtc alarm", rtc);
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if (unlikely(ret)) {
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dev_err(&pdev->dev,
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"request alarm IRQ failed with %d, IRQ %d\n",
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ret, rtc->alarm_irq);
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free_irq(rtc->carry_irq, rtc);
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free_irq(rtc->periodic_irq, rtc);
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goto err_unmap;
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}
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}
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@ -714,13 +707,10 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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sh_rtc_setaie(&pdev->dev, 0);
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sh_rtc_setcie(&pdev->dev, 0);
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rtc->rtc_dev = rtc_device_register("sh", &pdev->dev,
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rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, "sh",
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&sh_rtc_ops, THIS_MODULE);
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if (IS_ERR(rtc->rtc_dev)) {
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ret = PTR_ERR(rtc->rtc_dev);
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free_irq(rtc->periodic_irq, rtc);
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free_irq(rtc->carry_irq, rtc);
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free_irq(rtc->alarm_irq, rtc);
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goto err_unmap;
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}
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@ -737,12 +727,6 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
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err_unmap:
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clk_disable(rtc->clk);
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clk_put(rtc->clk);
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iounmap(rtc->regbase);
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err_badmap:
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release_mem_region(rtc->res->start, rtc->regsize);
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err_badres:
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kfree(rtc);
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return ret;
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}
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@ -751,26 +735,12 @@ static int __exit sh_rtc_remove(struct platform_device *pdev)
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{
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struct sh_rtc *rtc = platform_get_drvdata(pdev);
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rtc_device_unregister(rtc->rtc_dev);
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sh_rtc_irq_set_state(&pdev->dev, 0);
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sh_rtc_setaie(&pdev->dev, 0);
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sh_rtc_setcie(&pdev->dev, 0);
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free_irq(rtc->periodic_irq, rtc);
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if (rtc->carry_irq > 0) {
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free_irq(rtc->carry_irq, rtc);
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free_irq(rtc->alarm_irq, rtc);
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}
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iounmap(rtc->regbase);
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release_mem_region(rtc->res->start, rtc->regsize);
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clk_disable(rtc->clk);
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clk_put(rtc->clk);
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kfree(rtc);
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return 0;
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}
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