#include <sys/mutex.h>
#include <sys/atomic.h>
#include <sys/errno.h>

#include <stdlib.h>

extern avrThread* _thread_current;

APICALL	mutex_release(MUTEX *mutex)
{
	ATOMIC
	if (mutex && mutex->locked && (mutex->thread == current_thread()))
	{
		mutex->locked--;
		if (mutex->locked == 0)
		{
			mutex->thread = NULL;
		};
		return 0;
	};
	return -EBUSY;
};