Commit eecee32a authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

V4L/DVB (13639): ir-sysfs: Properly protect rc_tab changes with a lock 



Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent d4b778d3

drivers/media/IR/ir-sysfs.c

+3 −0
Original line number Diff line number Diff line
@@ -79,6 +79,7 @@ static ssize_t store_protocol(struct device *d, 
	struct ir_input_dev *ir_dev = dev_get_drvdata(d);

	enum ir_type ir_type = IR_TYPE_UNKNOWN;

	int rc = -EINVAL;

	unsigned long flags;

	char *buf;



	buf = strsep((char **) &data, "\n");
@@ -104,7 +105,9 @@ static ssize_t store_protocol(struct device *d, 
		return -EINVAL;

	}



	spin_lock_irqsave(&ir_dev->rc_tab.lock, flags);

	ir_dev->rc_tab.ir_type = ir_type;

	spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags);



	IR_dprintk(1, "Current protocol is %ld\n", ir_type);