From 589e501439f9866b4bc415743b0ae0bb9a461c69 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Thu, 3 Apr 2014 14:49:57 -0700 Subject: [PATCH] rtc: mc13xxx: request IRQs after RTC registration MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Interrupts can appear after request_irq and interrupt handlers can use the RTC device, but currently we register RTC after IRQs. This patch changes this order and simplify error path a bit. Signed-off-by: Alexander Shiyan Cc: Uwe Kleine-König Cc: Sascha Hauer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-mc13xxx.c | 32 +++++++++++--------------------- 1 file changed, 11 insertions(+), 21 deletions(-) diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index 480d51f71064..6b5d7d43af89 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -325,6 +325,11 @@ static int __init mc13xxx_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); + priv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, + &mc13xxx_rtc_ops, THIS_MODULE); + if (IS_ERR(priv->rtc)) + return PTR_ERR(priv->rtc); + mc13xxx_lock(mc13xxx); ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_RTCRST, @@ -342,35 +347,20 @@ static int __init mc13xxx_rtc_probe(struct platform_device *pdev) ret = mc13xxx_irq_request_nounmask(mc13xxx, MC13XXX_IRQ_1HZ, mc13xxx_rtc_update_handler, DRIVER_NAME, priv); if (ret) - goto err_update_irq_request; + goto err_reset_irq_status; ret = mc13xxx_irq_request_nounmask(mc13xxx, MC13XXX_IRQ_TODA, mc13xxx_rtc_alarm_handler, DRIVER_NAME, priv); - if (ret) - goto err_alarm_irq_request; - - mc13xxx_unlock(mc13xxx); - - priv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, - &mc13xxx_rtc_ops, THIS_MODULE); - if (IS_ERR(priv->rtc)) { - ret = PTR_ERR(priv->rtc); - - mc13xxx_lock(mc13xxx); - - mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_TODA, priv); -err_alarm_irq_request: + if (!ret) + goto err_reset_irq_request; - mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_1HZ, priv); -err_update_irq_request: + mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_1HZ, priv); err_reset_irq_status: + mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv); - mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv); err_reset_irq_request: - - mc13xxx_unlock(mc13xxx); - } + mc13xxx_unlock(mc13xxx); return ret; } -- 2.20.1