linux-kernel - Re: [RFC] [PATCH] drm: adv7511/33: Fix adv7511_cec

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:   Mon, 20 Nov 2017 12:13:36 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...ux.ie>,
        lkml <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Bhumika Goyal <bhumirks@...il.com>
Subject: Re: [RFC] [PATCH] drm: adv7511/33: Fix adv7511_cec_init() failure handling

On Fri, Nov 17, 2017 at 12:43 AM, Hans Verkuil <hverkuil@...all.nl> wrote:
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> index 3a33075dbb22..56eeeea6a1fa 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -1202,9 +1202,7 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
>         offset = adv7511->type == ADV7533 ? ADV7533_REG_CEC_OFFSET : 0;
>
>  #ifdef CONFIG_DRM_I2C_ADV7511_CEC
> -       ret = adv7511_cec_init(dev, adv7511, offset);
> -       if (ret)
> -               goto err_unregister_cec;
> +       adv7511_cec_init(dev, adv7511, offset);
>  #else
>         regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL + offset,
>                      ADV7511_CEC_CTRL_POWER_DOWN);


One tiny nit-pick I realized I should have made in my patch...

In the !CONFIG_DRM_I2C_ADV7511_CEC, can you just define adv7511_cec_init() as
{
    regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL + offset,
ADV7511_CEC_CTRL_POWER_DOWN);
}

Then we can call it either way, and don't need to have the ufly
#ifdefs in the adv7511_probe function?

thanks
-john