linux-kernel - Re: [patch 119/197] scripts/coccinelle/free: Delete NULL test before freeing functions

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Message-ID: <554A1AF3.9010802@users.sourceforge.net>
Date:	Wed, 06 May 2015 15:45:23 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Julia Lawall <julia.lawall@...6.fr>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Coccinelle <cocci@...teme.lip6.fr>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org, Fabian Frederick <fabf@...net.be>,
	Joe Perches <joe@...ches.com>
Subject: Re: [patch 119/197] scripts/coccinelle/free: Delete NULL test before
 freeing functions

>>> +@r depends on context || report || org @
>>> +expression E;
>>> +position p;
>>> +@@
>>> +
>>> +* if (E)
>>> +*	\(kfree@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|usb_free_urb\)(E);
>>
>> How do you think about to add the construct "@p" also behind the function name
>> "usb_free_urb"?
> 
> Yes, that would be needed, thanks.  Also, it was recently suggested to add 
> of_node_put to the list of things that are checked for.

Would you like to achieve further improvements for this approach?
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/scripts/coccinelle/free/ifnullfree.cocci?id=refs/tags/v4.0.1#n34

Regards,
Markus

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