From: Navid Emamdoost <navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Laxman Dewangan
<ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
Jon Hunter <jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Vinod Koul <vkoul-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: emamd001-OJFnDUYgAso@public.gmane.org,
wu000273-OJFnDUYgAso@public.gmane.org,
kjlu-OJFnDUYgAso@public.gmane.org,
smccaman-OJFnDUYgAso@public.gmane.org,
Navid Emamdoost
<navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH] dmaengine: tegra210-adma: fix pm_runtime_get_sync failure
Date: Wed, 3 Jun 2020 13:38:45 -0500 [thread overview]
Message-ID: <20200603183845.91054-1-navid.emamdoost@gmail.com> (raw)
Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.
Signed-off-by: Navid Emamdoost <navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/dma/tegra210-adma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
index c4ce5dfb149b..87f2a1bed3aa 100644
--- a/drivers/dma/tegra210-adma.c
+++ b/drivers/dma/tegra210-adma.c
@@ -869,8 +869,10 @@ static int tegra_adma_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_get_sync(&pdev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_sync(&pdev->dev);
goto rpm_disable;
+ }
ret = tegra_adma_init(tdma);
if (ret)
--
2.17.1
next reply other threads:[~2020-06-03 18:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 18:38 Navid Emamdoost [this message]
[not found] ` <20200603183845.91054-1-navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-06-04 17:43 ` [PATCH] dmaengine: tegra210-adma: fix pm_runtime_get_sync failure Jon Hunter
-- strict thread matches above, loose matches on Subject: below --
2020-06-03 18:41 Navid Emamdoost
[not found] ` <20200603184104.4475-1-navid.emamdoost-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-06-04 17:45 ` Jon Hunter
[not found] ` <900909fe-fa15-fbca-80f7-79aeee721ed9-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2020-06-04 17:48 ` Navid Emamdoost
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=20200603183845.91054-1-navid.emamdoost@gmail.com \
--to=navid.emamdoost-re5jqeeqqe8avxtiumwx3w@public.gmane.org \
--cc=dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org \
--cc=dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=emamd001-OJFnDUYgAso@public.gmane.org \
--cc=jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
--cc=kjlu-OJFnDUYgAso@public.gmane.org \
--cc=ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=smccaman-OJFnDUYgAso@public.gmane.org \
--cc=thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=vkoul-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=wu000273-OJFnDUYgAso@public.gmane.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).