From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Chen <tim.c.chen@linux.intel.com>
Subject: Re: [PATCH v6 5/9] x86/sysctl: Add sysctl for ITMT scheduling
 feature
Date: Wed, 26 Oct 2016 11:03:26 -0700
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To: Thomas Gleixner <tglx@linutronix.de>
Cc: rjw@rjwysocki.net, mingo@redhat.com, bp@suse.de, x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, peterz@infradead.org, jolsa@redhat.com, Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
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On Wed, 2016-10-26 at 12:52 +0200, Thomas Gleixner wrote:
> On Thu, 20 Oct 2016, Tim Chen wrote:
> > 
> >  
> > +	if (itmt_sysctl_header)
> > +		unregister_sysctl_table(itmt_sysctl_header);
> What sets itmt_sysctl_header to NULL?
> 

If the registration of the itmt sysctl table has failed, it will
be NULL.

Tim