linux-kernel - Re: [PATCH v2] Input: elan_i2c - check if device is there before really probing

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Message-ID: <CAOMZO5Af4YR95D7xJepPf-wm4JA0qxmgEMqSJd8SbUBT0CxB7A@mail.gmail.com>
Date:   Tue, 9 May 2017 21:49:50 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     linux-input@...r.kernel.org, KT Liao <ktalex.liao@...il.com>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] Input: elan_i2c - check if device is there before
 really probing

On Tue, May 9, 2017 at 9:46 PM, Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:

> That is the point of the patch - we want to fail silently if the device
> is not actually there and fails even the simplest communication. Driver
> core treats ENXIO and ENODEV as special and does not log errors.

Got it, thanks for the explanation!