linux-kernel - Re: [PATCH] media: staging/imx: do not return error in link

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Message-ID: <87b48a34-4beb-eb21-3361-28f6edb6d73c@gmail.com>
Date:   Wed, 11 Oct 2017 15:14:26 -0700
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Steve Longerbeam <steve_longerbeam@...tor.com>
Subject: Re: [PATCH] media: staging/imx: do not return error in link_notify
 for unknown sources



On 10/11/2017 02:49 PM, Russell King - ARM Linux wrote:
> On Tue, Oct 03, 2017 at 12:09:13PM -0700, Steve Longerbeam wrote:
>> imx_media_link_notify() should not return error if the source subdevice
>> is not recognized by imx-media, that isn't an error. If the subdev has
>> controls they will be inherited starting from a known subdev.
> What does "a known subdev" mean?

It refers to the previous sentence, "not recognized by imx-media". A
subdev that was not registered via async registration and so not in
imx-media's async subdev list. I could elaborate in the commit message
but it seems fairly obvious to me.

Steve