From: Charles Keepax <ckeepax@opensource.cirrus.com>
To: <linus.walleij@linaro.org>
Cc: <tony@atomide.com>, <linux-gpio@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <patches@opensource.cirrus.com>
Subject: [PATCH] pinctrl: core: Remove extra kref_get which blocks hogs being freed
Date: Fri, 28 Feb 2020 15:41:42 +0000 [thread overview]
Message-ID: <20200228154142.13860-1-ckeepax@opensource.cirrus.com> (raw)
kref_init starts with the reference count at 1, which will be balanced
by the pinctrl_put in pinctrl_unregister. The additional kref_get in
pinctrl_claim_hogs will increase this count to 2 and cause the hogs to
not get freed when pinctrl_unregister is called.
Fixes: 6118714275f0 ("pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
drivers/pinctrl/core.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 446d84fe0e31c..f23c55e221955 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -2021,7 +2021,6 @@ static int pinctrl_claim_hogs(struct pinctrl_dev *pctldev)
return PTR_ERR(pctldev->p);
}
- kref_get(&pctldev->p->users);
pctldev->hog_default =
pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT);
if (IS_ERR(pctldev->hog_default)) {
--
2.11.0
next reply other threads:[~2020-02-28 15:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 15:41 Charles Keepax [this message]
2020-02-28 23:33 ` [PATCH] pinctrl: core: Remove extra kref_get which blocks hogs being freed Linus Walleij
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=20200228154142.13860-1-ckeepax@opensource.cirrus.com \
--to=ckeepax@opensource.cirrus.com \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=patches@opensource.cirrus.com \
--cc=tony@atomide.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;
as well as URLs for NNTP newsgroup(s).