[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: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

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;
 }