linux-kernel - Re: [PATCH] regulator: Check SET[1|2|3] GPIO settings earlier

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, 13 Mar 2012 23:13:36 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Liam Girdwood <lrg@...com>
Subject: Re: [PATCH] regulator: Check SET[1|2|3] GPIO settings earlier

On Tue, Mar 13, 2012 at 10:58:20AM +0800, Axel Lin wrote:
> Unused GPIO is marked as -1, we need to check if one of the gpio is set to 0
> here because gpio_is_valid considers 0 as a valid gpio.

This will break existing boards, we need to manage the transfer more
gracefully and complain if we're using a GPIO 0.  Though I'm not sure
it's worth bothering, I hope no modern gpiolib implementation will do
this.

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)