On Wed, 26 Oct 2016, Tim Chen wrote:

On Wed, 2016-10-26 at 12:52 +0200, Thomas Gleixner wrote:

quoted

On Thu, 20 Oct 2016, Tim Chen wrote:

quoted

 
+	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.

And what clears it _AFTER_ the deregistration? Nothing, AFAICT.