* [PATCH v2] media: rc: remove unneeded mutex in rc_register_device
@ 2016-03-16 21:32 Heiner Kallweit
0 siblings, 0 replies; only message in thread
From: Heiner Kallweit @ 2016-03-16 21:32 UTC (permalink / raw)
To: Mauro Carvalho Chehab; +Cc: linux-media, vladimir_zapolskiy
Access to dev->initialized is atomic and dev->initialized isn't
accessed in any other code protected by this mutex.
Therefore we don't need to get the mutex here.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
v2:
- corrected commit message
---
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
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