Bluetooth: btintel: Do no pass vendor events to stack

During firmware download, vendor specific events like boot up and
secure send result are generated. These events can be safely processed at
the driver level. Passing on these events to stack prints unnecessary
log as below.

    Bluetooth: hci0: Malformed MSFT vendor event: 0x02

Fixes: 3368aa3 ("Bluetooth: msft: Handle MSFT Monitor Device Event")
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Author: kirankrishnappa-intel

drivers/bluetooth/btintel.c

@@ -3395,15 +3395,17 @@ int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 				 * indicating that the bootup completed.
 				 */
 				btintel_bootup(hdev, ptr, len);
-				break;
+				kfree_skb(skb);
+				return 0;
 			case 0x06:
 				/* When the firmware loading completes the
 				 * device sends out a vendor specific event
 				 * indicating the result of the firmware
 				 * loading.
 				 */
 				btintel_secure_send_result(hdev, ptr, len);
-				break;
+				kfree_skb(skb);
+				return 0;
 			}
 		}
 

drivers/bluetooth/btintel_pcie.c

@@ -550,7 +550,8 @@ static int btintel_pcie_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 				if (btintel_pcie_in_op(data)) {
 					btintel_pcie_wr_sleep_cntrl(data, BTINTEL_PCIE_STATE_D0);
 					data->alive_intr_ctxt = BTINTEL_PCIE_INTEL_HCI_RESET2;
-					break;
+					kfree_skb(skb);
+					return 0;
 				}
 
 				if (btintel_pcie_in_iml(data)) {
@@ -567,15 +568,17 @@ static int btintel_pcie_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 						btintel_wake_up_flag(data->hdev,
 								     INTEL_WAIT_FOR_D0);
 				}
-				break;
+				kfree_skb(skb);
+				return 0;
 			case 0x06:
 				/* When the firmware loading completes the
 				 * device sends out a vendor specific event
 				 * indicating the result of the firmware
 				 * loading.
 				 */
 				btintel_secure_send_result(hdev, ptr, len);
-				break;
+				kfree_skb(skb);
+				return 0;
 			}
 		}