From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Johan Hovold <johan@kernel.org>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
stable <stable@vger.kernel.org>
Subject: Re: [PATCH 2/3] Input: twl6040-vibra: fix child-node lookup
Date: Mon, 13 Nov 2017 15:39:48 +0100 [thread overview]
Message-ID: <94DB4354-C943-47B1-8D5A-A6AB615F2B9C@goldelico.com> (raw)
In-Reply-To: <20171113141932.GV11226@localhost>
Hi,
> Am 13.11.2017 um 15:19 schrieb Johan Hovold <johan@kernel.org>:
>
> On Mon, Nov 13, 2017 at 04:10:52PM +0200, Peter Ujfalusi wrote:
>
>> On 2017-11-11 17:43, Johan Hovold wrote:
>>> Fix child-node lookup during probe, which ended up searching the whole
>>> device tree depth-first starting at parent rather than just matching on
>>> its children.
>>>
>>> Later sanity checks on node properties (which would likely be missing)
>>> should prevent this from causing much trouble however, especially as the
>>> original premature free of the parent node has already been fixed
>>> separately (but that "fix" was apparently never backported to stable).
>>>
>>> Fixes: e7ec014a47e4 ("Input: twl6040-vibra - update for device tree support")
>>> Fixes: c52c545ead97 ("Input: twl6040-vibra - fix DT node memory management")
>>> Cc: stable <stable@vger.kernel.org> # 3.6
>>
>> Note that of_get_child_by_name() is not present in 3.6, this was the
>> reason the original implementation was using of_find_node_by_name()
>
> Ah, ok. So the lookup would have needed to be open-coded using
> for_each_child_of_node() back then, or if anyone wants to backport any
> of these fixes to before v3.7.
Just let me note that intensive DT support of OMAP4&5/ARM based boards didn't
start before ca. v3.13. So it is very unlikely that anyone is running a twl6040
based board with older kernels. It is different for twl4030/omap3 which was
used by several devices (N900, Pandora, GTA04) back in 2.6. So I don't
see a reason to backport this change to any kernel older than 3.16.
BR,
Nikolaus Schaller
next prev parent reply other threads:[~2017-11-13 14:39 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-11 15:43 [PATCH 1/3] Input: twl4030-vibra: fix sibling-node lookup Johan Hovold
2017-11-11 15:43 ` [PATCH 2/3] Input: twl6040-vibra: fix child-node lookup Johan Hovold
2017-11-13 7:17 ` Peter Ujfalusi
[not found] ` <91A591C4-D6BD-462D-B81E-224DB268EDDB@goldelico.com>
2017-11-13 9:16 ` Johan Hovold
2017-11-13 14:10 ` Peter Ujfalusi
2017-11-13 14:19 ` Johan Hovold
2017-11-13 14:39 ` H. Nikolaus Schaller [this message]
2017-11-13 14:46 ` Johan Hovold
2018-01-09 1:35 ` Dmitry Torokhov
2017-11-11 15:43 ` [PATCH 3/3] Input: 88pm860x-ts: " Johan Hovold
2018-01-09 1:35 ` Dmitry Torokhov
2017-11-11 17:50 ` [PATCH 1/3] Input: twl4030-vibra: fix sibling-node lookup Dmitry Torokhov
2017-11-12 12:12 ` Johan Hovold
2017-11-13 9:11 ` Lee Jones
2017-11-13 9:35 ` Johan Hovold
2017-11-13 10:20 ` Lee Jones
2017-11-13 11:51 ` Johan Hovold
2017-11-13 21:54 ` Dmitry Torokhov
2017-11-14 10:39 ` Lee Jones
2017-11-13 7:17 ` Peter Ujfalusi
2017-12-11 10:21 ` Johan Hovold
2018-01-08 13:55 ` Johan Hovold
2018-01-09 1:36 ` Dmitry Torokhov
2018-01-09 9:21 ` Johan Hovold
2018-01-09 1:17 ` Dmitry Torokhov
2018-01-09 1:35 ` Dmitry Torokhov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=94DB4354-C943-47B1-8D5A-A6AB615F2B9C@goldelico.com \
--to=hns@goldelico.com \
--cc=dmitry.torokhov@gmail.com \
--cc=johan@kernel.org \
--cc=linux-input@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peter.ujfalusi@ti.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).