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Commit 23a48093 authored by Johan Hedberg's avatar Johan Hedberg Committed by Marcel Holtmann
Browse files

Bluetooth: Fix setting STOPPING state for discovery 



If any of the HCI commands from the hci_stop_discovery function were
successfully sent we need to set the discovery state to STOPPING. The
Stop Discovery code was already handling this, but the code in
clean_up_hci_state was not. This patch updates the hci_stop_discovery to
return a bool to indicate whether it queued any commands and the
clean_up_hci_state() function respectively to look at the return value
and call hci_discovery_set_state() if necessary.

Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 34722277

net/bluetooth/mgmt.c

+18 −7
Original line number Diff line number Diff line
@@ -1251,7 +1251,7 @@ static void clean_up_hci_complete(struct hci_dev *hdev, u8 status) 
	}

}



static void hci_stop_discovery(struct hci_request *req)

static bool hci_stop_discovery(struct hci_request *req)

{

	struct hci_dev *hdev = req->hdev;

	struct hci_cp_remote_name_req_cancel cp;
@@ -1266,32 +1266,39 @@ static void hci_stop_discovery(struct hci_request *req) 
			hci_req_add_le_scan_disable(req);

		}



		break;

		return true;



	case DISCOVERY_RESOLVING:

		e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,

						     NAME_PENDING);

		if (!e)

			return;

			break;



		bacpy(&cp.bdaddr, &e->data.bdaddr);

		hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),

			    &cp);



		break;

		return true;



	default:

		/* Passive scanning */

		if (test_bit(HCI_LE_SCAN, &hdev->dev_flags))

		if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) {

			hci_req_add_le_scan_disable(req);

			return true;

		}



		break;

	}



	return false;

}



static int clean_up_hci_state(struct hci_dev *hdev)

{

	struct hci_request req;

	struct hci_conn *conn;

	bool discov_stopped;

	int err;



	hci_req_init(&req, hdev);
@@ -1304,7 +1311,7 @@ static int clean_up_hci_state(struct hci_dev *hdev) 
	if (test_bit(HCI_LE_ADV, &hdev->dev_flags))

		disable_advertising(&req);



	hci_stop_discovery(&req);

	discov_stopped = hci_stop_discovery(&req);



	list_for_each_entry(conn, &hdev->conn_hash.list, list) {

		struct hci_cp_disconnect dc;
@@ -1338,7 +1345,11 @@ static int clean_up_hci_state(struct hci_dev *hdev) 
		}

	}



	return hci_req_run(&req, clean_up_hci_complete);

	err = hci_req_run(&req, clean_up_hci_complete);

	if (!err && discov_stopped)

		hci_discovery_set_state(hdev, DISCOVERY_STOPPING);



	return err;

}



static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,