From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
linux-iio@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
William Breathitt Gray <vilhelm.gray@gmail.com>,
linux-kernel@vger.kernel.org, kernel@pengutronix.de,
Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: Re: [PATCH v2 13/23] counter: Provide alternative counter registration functions
Date: Wed, 29 Dec 2021 13:07:23 +0100 [thread overview]
Message-ID: <20211229120723.y5dlbmbvmg4ogq26@pengutronix.de> (raw)
In-Reply-To: <20211229112732.23aefj6hcv7ymija@pengutronix.de>
[-- Attachment #1: Type: text/plain, Size: 981 bytes --]
Hello,
On Wed, Dec 29, 2021 at 12:27:32PM +0100, Uwe Kleine-König wrote:
> > Personal inclination here would be to keep the elements in here
> > in the same order as in counter_register() where it doesn't matter
> > in the interests of slightly easier comparison of the code.
>
> I reordered a bit because counter_register fails to undo ida_alloc() in
> the error path. However I might have missed that some initialisation has
> to be done before calling counter_chrdev_add().
Another issue in counter_register() is: If counter_sysfs_add() fails,
put_device() is called which eventually calls counter_device_release()
-> counter_chrdev_remove() -> kfifo_free(). I think it's not a real
problem, but it's ugly because because counter_chrdev_add()
-> kfifo_alloc() wasn't called yet.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
next prev parent reply other threads:[~2021-12-29 12:07 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-27 9:45 [PATCH v2 00/23] counter: cleanups and device lifetime fixes Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-27 9:45 ` [PATCH v2 01/23] counter: Use container_of instead of drvdata to track counter_device Uwe Kleine-König
2021-12-28 17:14 ` Jonathan Cameron
2021-12-29 6:38 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 02/23] counter: ftm-quaddec: Drop unused platform_set_drvdata() Uwe Kleine-König
2021-12-28 17:37 ` Jonathan Cameron
2021-12-29 6:42 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 03/23] counter: microchip-tcb-capture: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 17:38 ` Jonathan Cameron
2021-12-28 17:38 ` Jonathan Cameron
2021-12-29 6:44 ` William Breathitt Gray
2021-12-29 6:44 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 04/23] counter: Provide a wrapper to access device private data Uwe Kleine-König
2021-12-27 11:02 ` Greg Kroah-Hartman
2021-12-27 11:34 ` Lars-Peter Clausen
2021-12-27 11:52 ` Greg Kroah-Hartman
2021-12-27 12:28 ` Lars-Peter Clausen
2021-12-28 18:01 ` Jonathan Cameron
2021-12-29 6:47 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 05/23] counter: 104-quad-8: Convert to counter_priv() wrapper Uwe Kleine-König
2021-12-28 18:02 ` Jonathan Cameron
2021-12-29 11:11 ` Uwe Kleine-König
2021-12-29 7:27 ` William Breathitt Gray
2021-12-29 11:15 ` Uwe Kleine-König
2021-12-29 22:40 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 06/23] counter: interrupt-cnt: " Uwe Kleine-König
2021-12-28 18:04 ` Jonathan Cameron
2021-12-29 7:34 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 07/23] counter: microchip-tcb-capture: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 18:05 ` Jonathan Cameron
2021-12-28 18:05 ` Jonathan Cameron
2021-12-29 7:35 ` William Breathitt Gray
2021-12-29 7:35 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 08/23] counter: intel-qep: " Uwe Kleine-König
2021-12-28 18:06 ` Jonathan Cameron
2021-12-29 7:35 ` William Breathitt Gray
2021-12-29 12:43 ` Jarkko Nikula
2021-12-27 9:45 ` [PATCH v2 09/23] counter: ftm-quaddec: " Uwe Kleine-König
2021-12-28 18:07 ` Jonathan Cameron
2021-12-29 7:36 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 10/23] counter: ti-eqep: " Uwe Kleine-König
2021-12-28 18:07 ` Jonathan Cameron
2021-12-29 7:45 ` William Breathitt Gray
2021-12-29 11:19 ` Uwe Kleine-König
2021-12-27 9:45 ` [PATCH v2 11/23] counter: stm32-lptimer-cnt: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 18:08 ` Jonathan Cameron
2021-12-28 18:08 ` Jonathan Cameron
2021-12-29 7:48 ` William Breathitt Gray
2021-12-29 7:48 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 12/23] counter: stm32-timer-cnt: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 18:08 ` Jonathan Cameron
2021-12-28 18:08 ` Jonathan Cameron
2021-12-29 7:48 ` William Breathitt Gray
2021-12-29 7:48 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 13/23] counter: Provide alternative counter registration functions Uwe Kleine-König
2021-12-27 12:16 ` Lars-Peter Clausen
2021-12-28 11:22 ` Uwe Kleine-König
2021-12-27 12:18 ` kernel test robot
2021-12-27 12:18 ` kernel test robot
2021-12-28 18:00 ` Jonathan Cameron
2021-12-29 11:27 ` Uwe Kleine-König
2021-12-29 12:07 ` Uwe Kleine-König [this message]
2021-12-29 13:49 ` Jarkko Nikula
2021-12-29 15:47 ` Uwe Kleine-König
2021-12-29 8:13 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 14/23] counter: Update documentation for new " Uwe Kleine-König
2021-12-28 18:12 ` Jonathan Cameron
2021-12-29 8:19 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 15/23] counter: 104-quad-8: Convert to new counter registration Uwe Kleine-König
2021-12-27 12:19 ` Lars-Peter Clausen
2021-12-28 11:06 ` Uwe Kleine-König
2021-12-28 18:17 ` Jonathan Cameron
2021-12-29 8:24 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 16/23] counter: interrupt-cnt: " Uwe Kleine-König
2021-12-27 10:59 ` Greg Kroah-Hartman
2021-12-27 11:21 ` Lars-Peter Clausen
2021-12-27 11:34 ` Greg Kroah-Hartman
2021-12-27 11:44 ` Lars-Peter Clausen
2021-12-27 21:09 ` Uwe Kleine-König
2021-12-28 18:18 ` Jonathan Cameron
2021-12-29 8:27 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 17/23] counter: intel-qep: " Uwe Kleine-König
2021-12-27 15:02 ` Jarkko Nikula
2021-12-28 10:56 ` Uwe Kleine-König
2021-12-29 12:42 ` Jarkko Nikula
2021-12-28 18:20 ` Jonathan Cameron
2021-12-29 8:29 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 18/23] counter: ftm-quaddec: " Uwe Kleine-König
2021-12-28 18:23 ` Jonathan Cameron
2021-12-29 8:33 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 19/23] counter: microchip-tcb-capture: " Uwe Kleine-König
2021-12-28 18:24 ` Jonathan Cameron
2021-12-29 8:36 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 20/23] counter: stm32-timer-cnt: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 18:25 ` Jonathan Cameron
2021-12-28 18:25 ` Jonathan Cameron
2021-12-29 8:37 ` William Breathitt Gray
2021-12-29 8:37 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 21/23] counter: stm32-lptimer-cnt: " Uwe Kleine-König
2021-12-27 9:45 ` Uwe Kleine-König
2021-12-28 18:26 ` Jonathan Cameron
2021-12-28 18:26 ` Jonathan Cameron
2021-12-29 8:39 ` William Breathitt Gray
2021-12-29 8:39 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 22/23] counter: ti-eqep: " Uwe Kleine-König
2021-12-28 18:29 ` Jonathan Cameron
2021-12-29 8:41 ` William Breathitt Gray
2021-12-27 9:45 ` [PATCH v2 23/23] counter: remove old and now unused registration API Uwe Kleine-König
2021-12-28 18:31 ` Jonathan Cameron
2021-12-29 8:43 ` William Breathitt Gray
2021-12-27 12:25 ` [PATCH v2 00/23] counter: cleanups and device lifetime fixes Lars-Peter Clausen
2021-12-27 12:25 ` Lars-Peter Clausen
2021-12-28 17:35 ` Jonathan Cameron
2021-12-28 17:35 ` Jonathan Cameron
2021-12-29 8:49 ` William Breathitt Gray
2021-12-29 8:49 ` William Breathitt Gray
2021-12-28 19:45 [PATCH v2 13/23] counter: Provide alternative counter registration functions kernel test robot
2022-01-06 10:53 ` Dan Carpenter
2022-01-06 10:53 ` Dan Carpenter
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=20211229120723.y5dlbmbvmg4ogq26@pengutronix.de \
--to=u.kleine-koenig@pengutronix.de \
--cc=Jonathan.Cameron@huawei.com \
--cc=gregkh@linuxfoundation.org \
--cc=jic23@kernel.org \
--cc=kernel@pengutronix.de \
--cc=lars@metafoo.de \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=vilhelm.gray@gmail.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.