if (!hdev) return; 
if (!hdev) return; 
static void hci_uart_destruct(struct hci_dev *hdev){	struct hci_uart *hu;	if (!hdev) return;	BT_DBG("%s", hdev->name);	hu = (struct hci_uart *) hdev->driver_data;	kfree(hu);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/0372a6627f862f90a2c43772befeecef508cfd7b/hci_ldisc.c/clean/drivers/bluetooth/hci_ldisc.c