linux-kernel - Re: [PATCH] Input: MT - Return directly after a failed kzalloc() in input_mt_init

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Date: Thu, 28 Dec 2023 23:43:01 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Markus Elfring <Markus.Elfring@....de>
Cc: linux-input@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Henrik Rydberg <rydberg@...math.org>,
	LKML <linux-kernel@...r.kernel.org>, cocci@...ia.fr
Subject: Re: [PATCH] Input: MT - Return directly after a failed kzalloc() in
 input_mt_init_slots()

On Tue, Dec 26, 2023 at 08:43:37PM +0100, Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Tue, 26 Dec 2023 20:36:09 +0100
> 
> The kfree() function was called in one case by
> the input_mt_init_slots() function during error handling
> even if the passed variable contained a null pointer.
> This issue was detected by using the Coccinelle software.
> 
> Thus return directly after a call of the function “kzalloc” failed
> at the beginning.

This is not needed. The same arguments as on the patch to
usbtouchscreen.c.

Thanks.

-- 
Dmitry