All of lore.kernel.org
 help / color / mirror / Atom feed
From: Wolfram Sang <wsa@kernel.org>
To: Dinghao Liu <dinghao.liu@zju.edu.cn>
Cc: kjlu@umn.edu, Markus Elfring <Markus.Elfring@web.de>,
	Dong Aisheng <aisheng.dong@nxp.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Fugang Duan <fugang.duan@nxp.com>,
	linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [v3] i2c: imx-lpi2c: Fix runtime PM imbalance on error
Date: Sun, 14 Jun 2020 11:12:03 +0200	[thread overview]
Message-ID: <20200614091203.GC2878@kunai> (raw)
In-Reply-To: <20200601061640.27632-1-dinghao.liu@zju.edu.cn>

[-- Attachment #1: Type: text/plain, Size: 450 bytes --]

On Mon, Jun 01, 2020 at 02:16:40PM +0800, Dinghao Liu wrote:
> pm_runtime_get_sync() increments the runtime PM usage counter even
> the call returns an error code. Thus a corresponding decrement is
> needed on the error handling path to keep the counter balanced.

Can you point me to a discussion where it was decided that this is a
proper fix? I'd think we rather should fix pm_runtime_get_sync() but
maybe there are technical reasons against it.


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

WARNING: multiple messages have this Message-ID
From: Wolfram Sang <wsa@kernel.org>
To: Dinghao Liu <dinghao.liu@zju.edu.cn>
Cc: Dong Aisheng <aisheng.dong@nxp.com>,
	Fugang Duan <fugang.duan@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	kjlu@umn.edu, linux-kernel@vger.kernel.org,
	Markus Elfring <Markus.Elfring@web.de>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>,
	linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org
Subject: Re: [PATCH] [v3] i2c: imx-lpi2c: Fix runtime PM imbalance on error
Date: Sun, 14 Jun 2020 11:12:03 +0200	[thread overview]
Message-ID: <20200614091203.GC2878@kunai> (raw)
In-Reply-To: <20200601061640.27632-1-dinghao.liu@zju.edu.cn>


[-- Attachment #1.1: Type: text/plain, Size: 450 bytes --]

On Mon, Jun 01, 2020 at 02:16:40PM +0800, Dinghao Liu wrote:
> pm_runtime_get_sync() increments the runtime PM usage counter even
> the call returns an error code. Thus a corresponding decrement is
> needed on the error handling path to keep the counter balanced.

Can you point me to a discussion where it was decided that this is a
proper fix? I'd think we rather should fix pm_runtime_get_sync() but
maybe there are technical reasons against it.


[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[-- Attachment #2: Type: text/plain, Size: 176 bytes --]

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2020-06-14  9:12 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01  6:16 Dinghao Liu
2020-06-01  6:16 ` Dinghao Liu
2020-06-01  6:24 ` [EXT] " Andy Duan
2020-06-01  6:24   ` Andy Duan
2020-06-01  6:42 ` [PATCH v3] i2c: imx-lpi2c: Fix runtime PM imbalance in lpi2c_imx_master_enable() Markus Elfring
2020-06-01  6:42   ` Markus Elfring
2020-06-01  6:42   ` Markus Elfring
2020-06-14  9:12 ` Wolfram Sang [this message]
2020-06-14  9:12   ` [PATCH] [v3] i2c: imx-lpi2c: Fix runtime PM imbalance on error Wolfram Sang
2020-06-14 12:08   ` dinghao.liu
2020-06-14 12:08     ` dinghao.liu
2020-06-15  6:33   ` Aisheng Dong
2020-06-15  6:33     ` Aisheng Dong
2020-06-15  7:06     ` Wolfram Sang
2020-06-15  7:06       ` Wolfram Sang
2020-06-15  7:40       ` Markus Elfring
2020-06-15  7:40         ` Markus Elfring

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=20200614091203.GC2878@kunai \
    --to=wsa@kernel.org \
    --cc=Markus.Elfring@web.de \
    --cc=aisheng.dong@nxp.com \
    --cc=dinghao.liu@zju.edu.cn \
    --cc=festevam@gmail.com \
    --cc=fugang.duan@nxp.com \
    --cc=kernel@pengutronix.de \
    --cc=kjlu@umn.edu \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-i2c@vger.kernel.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=s.hauer@pengutronix.de \
    --cc=shawnguo@kernel.org \
    --subject='Re: [PATCH] [v3] i2c: imx-lpi2c: Fix runtime PM imbalance on error' \
    /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

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.