linux-kernel - Re: question on devm

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:	Wed, 08 Aug 2012 08:30:17 +0200
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Venu Byravarasu <vbyravarasu@...dia.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: question on devm_kfree

On 08/08/2012 07:56 AM, Venu Byravarasu wrote:
> As per comments related to devm_kzalloc, memory allocated using it is
> freed automatically.
> However there is a function called devm_kfree, comment section of which
> says that it is used to free memory allocated using devm_kzalloc().
> If memory allocated by devm_kzalloc is freed automatically, what's the
> need & significance of devm_kfree?
> 
> Thanks,
> Venu
>

Hi,

Memory allocated with devm_kzalloc is freed at the end of the lifetime of the
device it is attached to. If you for some reason want to free allocated with
memory devm_kzalloc before that of the lifetime of the device can use devm_kfree.


- Lars
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/