int hwspin_lock_register()

in hwspinlock_core.c [486:520]

• 28 lines of code
• 10 McCabe index (conditional complexity)

int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev,
		const struct hwspinlock_ops *ops, int base_id, int num_locks)
{
	struct hwspinlock *hwlock;
	int ret = 0, i;

	if (!bank || !ops || !dev || !num_locks || !ops->trylock ||
							!ops->unlock) {
		pr_err("invalid parameters\n");
		return -EINVAL;
	}

	bank->dev = dev;
	bank->ops = ops;
	bank->base_id = base_id;
	bank->num_locks = num_locks;

	for (i = 0; i < num_locks; i++) {
		hwlock = &bank->lock[i];

		spin_lock_init(&hwlock->lock);
		hwlock->bank = bank;

		ret = hwspin_lock_register_single(hwlock, base_id + i);
		if (ret)
			goto reg_failed;
	}

	return 0;

reg_failed:
	while (--i >= 0)
		hwspin_lock_unregister_single(base_id + i);
	return ret;
}