int regulator_mode_to_status(unsigned int mode)
{
	switch (mode) {
	case REGULATOR_MODE_FAST:
		return REGULATOR_STATUS_FAST;
	case REGULATOR_MODE_NORMAL:
		return REGULATOR_STATUS_NORMAL;
	case REGULATOR_MODE_IDLE:
		return REGULATOR_STATUS_IDLE;
	case REGULATOR_MODE_STANDBY:
		return REGULATOR_STATUS_STANDBY;
	default:
		return REGULATOR_STATUS_UNDEFINED;
	}
}

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.