linux-kernel - Re: [rtc] 4cd8adb100: WARNING: CPU: 0 PID: 1 at lib/kobject.c:690 kobject

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Date:   Fri, 17 Mar 2017 15:11:37 +0900
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Logan Gunthorpe <logang@...tatee.com>
Cc:     kernel test robot <fengguang.wu@...el.com>, LKP <lkp@...org>,
        linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
        wfg@...ux.intel.com
Subject: Re: [rtc] 4cd8adb100: WARNING: CPU: 0 PID: 1 at lib/kobject.c:690
 kobject_put

On Thu, Mar 16, 2017 at 11:23:26PM -0600, Logan Gunthorpe wrote:
> Hey,
> 
> I think I see the issue here: in a couple of error conditions, the RTC
> code will not initialize and ask for the cdev. However, my change will
> always call cdev_add and cdev_del even though the rtc code did not call
> cdev_init. I'll have to add a guard around dev->devt in the new
> cdev_device functions. I'll prepare another patch tomorrow.
> 
> I also noticed that I neglected to remove the prototypes for the two RTC
> function I removed. I'll fix that too.

Ok, I'm just going to drop this series from my tree so that other
patches in it can get pushed out to linux-next.  Please resend the full
series after you have fixed it up, and I'll be glad to queue it up
again.

thanks,

greg k-h