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rtc: max8925: Call dev_set_drvdata before rtc_device_register 

We call rtc_read_alarm from rtc_device_register, so it is important
that the rtc device is fully initialized prior to registration.

rtc-max8925 sets drvdata after register, so the rtc_read_alarm code
dereferences a NULL pointer.

Call dev_set_drvdata before rtc_device_register.

[ jstultz/tglx: Massaged commit message ]

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Link: http://lkml.kernel.org/r/%3C1303929869-25249-1-git-send-email-john.stultz%40linaro.org%3E
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Zhangfei Gao 2011-04-27 11:44:29 -07:00 committed by Thomas Gleixner
parent e8dad69408
commit f945a3d960
1 changed files with 2 additions and 1 deletions
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3
drivers/rtc/rtc-max8925.c
View File

@ -257,6 +257,8 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev)
goto out_irq;
}
dev_set_drvdata(&pdev->dev, info);
info->rtc_dev = rtc_device_register("max8925-rtc", &pdev->dev,
&max8925_rtc_ops, THIS_MODULE);
ret = PTR_ERR(info->rtc_dev);
@ -265,7 +267,6 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev)
goto out_rtc;
}
dev_set_drvdata(&pdev->dev, info);
platform_set_drvdata(pdev, info);
return 0;