linux-kernel - Re: [PATCH 4/4] ALSA: emu10k1: Cocci spatch "alloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 21 Sep 2017 10:00:01 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Thomas Meyer" <thomas@...3r.de>
Cc:     <alsa-devel@...a-project.org>, <perex@...ex.cz>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] ALSA: emu10k1: Cocci spatch "alloc_cast"

On Thu, 21 Sep 2017 08:33:46 +0200,
Thomas Meyer wrote:
> 
> Remove casting the values returned by memory allocation functions like
> kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc."
> Found by coccinelle spatch "api/alloc/alloc_cast.cocci"
> 
> Signed-off-by: Thomas Meyer <thomas@...3r.de>

No, this cast is still required because it has __user annotation.
It's not about compiler warning but about sparse.


thanks,

Takashi