From: Heiner Kallweit <hkallweit1@gmail.com>
To: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: linux-media@vger.kernel.org
Subject: [PATCH] media: rc: remove unneeded mutex in rc_register_device
Date: Wed, 16 Mar 2016 19:53:36 +0100 [thread overview]
Message-ID: <56E9ABB0.3010106@gmail.com> (raw)
Access to dev->initialized is atomic, therefore we don't have to
protect it with a mutex.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/media/rc/rc-main.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 4e9bbe7..68541b1 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1492,9 +1492,7 @@ int rc_register_device(struct rc_dev *dev)
}
/* Allow the RC sysfs nodes to be accessible */
- mutex_lock(&dev->lock);
atomic_set(&dev->initialized, 1);
- mutex_unlock(&dev->lock);
IR_dprintk(1, "Registered rc%u (driver: %s, remote: %s, mode %s)\n",
dev->minor,
--
2.7.3
next reply other threads:[~2016-03-16 18:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 18:53 Heiner Kallweit [this message]
2016-03-16 19:33 ` [PATCH] media: rc: remove unneeded mutex in rc_register_device Vladimir Zapolskiy
2016-03-16 21:24 ` Heiner Kallweit
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=56E9ABB0.3010106@gmail.com \
--to=hkallweit1@gmail.com \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@osg.samsung.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.