diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2014-04-03 14:49:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 16:21:20 -0700 |
| commit | 589e501439f9866b4bc415743b0ae0bb9a461c69 (patch) | |
| tree | aa56c1a2b0fbc1528497d4d08e1aedd52667a92a /drivers/rtc | |
| parent | 77bf2ea8de78ce7dd842409a847b888e720f62d8 (diff) | |
| download | talos-op-linux-589e501439f9866b4bc415743b0ae0bb9a461c69.tar.gz talos-op-linux-589e501439f9866b4bc415743b0ae0bb9a461c69.zip | |
rtc: mc13xxx: request IRQs after RTC registration
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 <shc_work@mail.ru>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-mc13xxx.c | 32 |
1 files 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; } |
