[Bluetooth] Handle command complete event for inquiry cancel

The command complete event of the inquiry cancel command must
clear the HCI_INQUIRY flag and finish the HCI request.

include/net/bluetooth/hci.h

@@ -304,6 +304,8 @@ struct hci_cp_inquiry {
 	__u8     num_rsp;
 } __attribute__ ((packed));
 
+#define OCF_INQUIRY_CANCEL	0x0002
+
 #define OCF_LINK_KEY_REPLY	0x000B
 #define OCF_LINK_KEY_NEG_REPLY	0x000C
 struct hci_cp_link_key_reply {

net/bluetooth/hci_event.c

@@ -62,9 +62,22 @@
 /* Command Complete OGF LINK_CTL  */
 static void hci_cc_link_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
 {
+	__u8 status;
+
 	BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 
 	switch (ocf) {
+	case OCF_INQUIRY_CANCEL:
+		status = *((__u8 *) skb->data);
+
+		if (status) {
+			BT_DBG("%s Inquiry cancel error: status 0x%x", hdev->name, status);
+		} else {
+			clear_bit(HCI_INQUIRY, &hdev->flags);
+			hci_req_complete(hdev, status);
+		}
+		break;
+
 	default:
 		BT_DBG("%s Command complete: ogf LINK_CTL ocf %x", hdev->name, ocf);
 		break;