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Commit 62148f09 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] cec: rename cec_devnode fhs_lock to just lock 



This lock will be used to protect more than just the fhs list.
So rename it to just 'lock'.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent fa8410b3

drivers/staging/media/cec/cec-adap.c

+6 −6
Original line number Diff line number Diff line
@@ -124,10 +124,10 @@ static void cec_queue_event(struct cec_adapter *adap, 
	u64 ts = ktime_get_ns();

	struct cec_fh *fh;



	mutex_lock(&adap->devnode.fhs_lock);

	mutex_lock(&adap->devnode.lock);

	list_for_each_entry(fh, &adap->devnode.fhs, list)

		cec_queue_event_fh(fh, ev, ts);

	mutex_unlock(&adap->devnode.fhs_lock);

	mutex_unlock(&adap->devnode.lock);

}



/*
@@ -191,12 +191,12 @@ static void cec_queue_msg_monitor(struct cec_adapter *adap, 
	u32 monitor_mode = valid_la ? CEC_MODE_MONITOR :

				      CEC_MODE_MONITOR_ALL;



	mutex_lock(&adap->devnode.fhs_lock);

	mutex_lock(&adap->devnode.lock);

	list_for_each_entry(fh, &adap->devnode.fhs, list) {

		if (fh->mode_follower >= monitor_mode)

			cec_queue_msg_fh(fh, msg);

	}

	mutex_unlock(&adap->devnode.fhs_lock);

	mutex_unlock(&adap->devnode.lock);

}



/*
@@ -207,12 +207,12 @@ static void cec_queue_msg_followers(struct cec_adapter *adap, 
{

	struct cec_fh *fh;



	mutex_lock(&adap->devnode.fhs_lock);

	mutex_lock(&adap->devnode.lock);

	list_for_each_entry(fh, &adap->devnode.fhs, list) {

		if (fh->mode_follower == CEC_MODE_FOLLOWER)

			cec_queue_msg_fh(fh, msg);

	}

	mutex_unlock(&adap->devnode.fhs_lock);

	mutex_unlock(&adap->devnode.lock);

}



/* Notify userspace of an adapter state change. */

drivers/staging/media/cec/cec-api.c

+4 −4
Original line number Diff line number Diff line
@@ -508,14 +508,14 @@ static int cec_open(struct inode *inode, struct file *filp) 


	filp->private_data = fh;



	mutex_lock(&devnode->fhs_lock);

	mutex_lock(&devnode->lock);

	/* Queue up initial state events */

	ev_state.state_change.phys_addr = adap->phys_addr;

	ev_state.state_change.log_addr_mask = adap->log_addrs.log_addr_mask;

	cec_queue_event_fh(fh, &ev_state, 0);



	list_add(&fh->list, &devnode->fhs);

	mutex_unlock(&devnode->fhs_lock);

	mutex_unlock(&devnode->lock);



	return 0;

}
@@ -540,9 +540,9 @@ static int cec_release(struct inode *inode, struct file *filp) 
		cec_monitor_all_cnt_dec(adap);

	mutex_unlock(&adap->lock);



	mutex_lock(&devnode->fhs_lock);

	mutex_lock(&devnode->lock);

	list_del(&fh->list);

	mutex_unlock(&devnode->fhs_lock);

	mutex_unlock(&devnode->lock);



	/* Unhook pending transmits from this filehandle. */

	mutex_lock(&adap->lock);

drivers/staging/media/cec/cec-core.c

+3 −3
Original line number Diff line number Diff line
@@ -117,7 +117,7 @@ static int __must_check cec_devnode_register(struct cec_devnode *devnode, 


	/* Initialization */

	INIT_LIST_HEAD(&devnode->fhs);

	mutex_init(&devnode->fhs_lock);

	mutex_init(&devnode->lock);



	/* Part 1: Find a free minor number */

	mutex_lock(&cec_devnode_lock);
@@ -181,10 +181,10 @@ static void cec_devnode_unregister(struct cec_devnode *devnode) 
	if (!devnode->registered || devnode->unregistered)

		return;



	mutex_lock(&devnode->fhs_lock);

	mutex_lock(&devnode->lock);

	list_for_each_entry(fh, &devnode->fhs, list)

		wake_up_interruptible(&fh->wait);

	mutex_unlock(&devnode->fhs_lock);

	mutex_unlock(&devnode->lock);



	devnode->registered = false;

	devnode->unregistered = true;

include/media/cec.h

+1 −1
Original line number Diff line number Diff line
@@ -57,8 +57,8 @@ struct cec_devnode { 
	int minor;

	bool registered;

	bool unregistered;

	struct mutex fhs_lock;

	struct list_head fhs;

	struct mutex lock;

};



struct cec_adapter;