linux-kernel - Re: [PATCH] ARM: locomo: fix free dev incorrectly

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] [day] [month] [year] [list]

Date:   Tue, 9 Jan 2018 14:47:53 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Xiongwei Song <sxwjean@...com>
Cc:     rafael.j.wysocki@...el.com, ulf.hansson@...aro.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        sxwjean@...il.com
Subject: Re: [PATCH] ARM: locomo: fix free dev incorrectly

On Tue, Jan 09, 2018 at 10:37:55PM +0800, Xiongwei Song wrote:
> In function locomo_init_one_child, If kzalloc call is failed for dev we
> would goto out label, then call kfree for dev, however, dev is NULL, we
> shouldn't do this.

kfree() internally checks for NULL pointers so callers don't have to.
Your patch is not necessary.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up