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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


             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

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