static struct oz_hcd *oz_hcd_claim(void)
{
	struct oz_hcd *ozhcd;

	spin_lock_bh(&g_hcdlock);
	ozhcd = g_ozhcd;
	if (ozhcd)
		usb_get_hcd(ozhcd->hcd);
	spin_unlock_bh(&g_hcdlock);
	return ozhcd;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.