From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Thu, 29 Oct 2015 21:19:19 +0000 (-0200)
Subject: [media] media: rc: nuvoton-cir: remove unneeded lock
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d5b04311cb31ba351a278d2a32487bf09843cb55;p=deliverable%2Flinux.git

[media] media: rc: nuvoton-cir: remove unneeded lock

chip_major / chip_minor are accessed sequentially in probe only.
Therefore no lock is needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index 3d9a4cf29919..4d8e12f2247d 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -227,7 +227,6 @@ static void cir_wake_dump_regs(struct nvt_dev *nvt)
 /* detect hardware features */
 static int nvt_hw_detect(struct nvt_dev *nvt)
 {
-	unsigned long flags;
 	u8 chip_major, chip_minor;
 	char chip_id[12];
 	bool chip_unknown = false;
@@ -279,10 +278,8 @@ static int nvt_hw_detect(struct nvt_dev *nvt)
 
 	nvt_efm_disable(nvt);
 
-	spin_lock_irqsave(&nvt->nvt_lock, flags);
 	nvt->chip_major = chip_major;
 	nvt->chip_minor = chip_minor;
-	spin_unlock_irqrestore(&nvt->nvt_lock, flags);
 
 	return 0;
 }