From: Zhangfei Gao Date: Wed, 27 Apr 2011 18:44:29 +0000 (-0700) Subject: rtc: max8925: Call dev_set_drvdata before rtc_device_register X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f945a3d9600633de589ce698233b34ff6ad57e55;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Cc: Alessandro Zummo Link: http://lkml.kernel.org/r/%3C1303929869-25249-1-git-send-email-john.stultz%40linaro.org%3E Signed-off-by: John Stultz Signed-off-by: Thomas Gleixner --- diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c index 174036dda786..20494b5edc3c 100644 --- a/drivers/rtc/rtc-max8925.c +++ b/drivers/rtc/rtc-max8925.c @@ -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;