From: Vinod Koul <vkoul@kernel.org>
To: dmaengine@vger.kernel.org, Ruoyu Wang <ruoyuw560@gmail.com>
Cc: Frank.Li@kernel.org, ed.blake@sondrel.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dmaengine: img-mdc: Fix runtime PM usage counter leak
Date: Thu, 03 Sep 2026 22:34:53 +0530 [thread overview]
Message-ID: <178845509375.1711546.3886618816582313442.b4-ty@kernel.org> (raw)
In-Reply-To: <20260813153143.3953303-1-ruoyuw560@gmail.com>
On Thu, 13 Aug 2026 23:31:43 +0800, Ruoyu Wang wrote:
> pm_runtime_get_sync() leaves the IMG MDC device's usage counter
> incremented when runtime resume fails. mdc_alloc_chan_resources() returns
> that error to the DMA core, so the channel's client count is not
> incremented and mdc_free_chan_resources() is not called to drop the
> reference. Repeated allocation attempts can therefore accumulate usage
> references and prevent runtime suspend.
>
> [...]
Applied, thanks!
[1/1] dmaengine: img-mdc: Fix runtime PM usage counter leak
commit: d8dfd04faeb9b49663bd268090df5c7df6bdbae6
Best regards,
--
~Vinod
prev parent reply other threads:[~2026-09-03 17:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 15:31 Ruoyu Wang
2026-08-13 16:16 ` Frank Li
2026-09-03 17:04 ` Vinod Koul [this message]
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=178845509375.1711546.3886618816582313442.b4-ty@kernel.org \
--to=vkoul@kernel.org \
--cc=Frank.Li@kernel.org \
--cc=dmaengine@vger.kernel.org \
--cc=ed.blake@sondrel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=ruoyuw560@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®