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rtc: ds3232: fix call trace when rtc->ops_lock is used as NULL

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The rtc->ops_lock would be accessed in ds3232_irq() without being
initialized as rtc_device_register() is called too late.

So move devm_rtc_device_register() just before registering irq handler
to initialize rtc->ops_lock earlier.

Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Qianyu Gong 2016-04-21 14:55:40 +08:00 committed by Alexandre Belloni
parent a350259da4
commit b4b77f3c28
1 changed files with 6 additions and 3 deletions
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9
drivers/rtc/rtc-ds3232.c
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@ -369,6 +369,11 @@ static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq,
if (ret)
return ret;
ds3232->rtc = devm_rtc_device_register(dev, name, &ds3232_rtc_ops,
THIS_MODULE);
if (IS_ERR(ds3232->rtc))
return PTR_ERR(ds3232->rtc);
if (ds3232->irq > 0) {
ret = devm_request_threaded_irq(dev, ds3232->irq, NULL,
ds3232_irq,
@ -380,10 +385,8 @@ static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq,
} else
device_init_wakeup(dev, 1);
}
ds3232->rtc = devm_rtc_device_register(dev, name, &ds3232_rtc_ops,
THIS_MODULE);
return PTR_ERR_OR_ZERO(ds3232->rtc);
return 0;
}
#ifdef CONFIG_PM_SLEEP