Commit 86a8cfc6 authored by Johan Hedberg's avatar Johan Hedberg
Browse files

Bluetooth: mgmt: Fix unpair_device responses 



This patch adds an error return when not powered and cleans up/simpifies
the function logic in the same go.

Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 5f97c1df

net/bluetooth/mgmt.c

+19 −17
Original line number Diff line number Diff line
@@ -1561,7 +1561,6 @@ static int unpair_device(struct sock *sk, u16 index, void *data, u16 len) 
	struct hci_cp_disconnect dc;

	struct pending_cmd *cmd;

	struct hci_conn *conn;

	u8 status = 0;

	int err;



	if (len != sizeof(*cp))
@@ -1579,32 +1578,38 @@ static int unpair_device(struct sock *sk, u16 index, void *data, u16 len) 
	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);

	rp.addr.type = cp->addr.type;



	if (!hdev_is_powered(hdev)) {

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE,

						MGMT_STATUS_NOT_POWERED,

						&rp, sizeof(rp));

		goto unlock;

	}



	if (cp->addr.type == MGMT_ADDR_BREDR)

		err = hci_remove_link_key(hdev, &cp->addr.bdaddr);

	else

		err = hci_remove_ltk(hdev, &cp->addr.bdaddr);



	if (err < 0) {

		status = MGMT_STATUS_NOT_PAIRED;

		goto unlock;

	}



	if (!test_bit(HCI_UP, &hdev->flags) || !cp->disconnect) {

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE, status,

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE,

						MGMT_STATUS_NOT_PAIRED,

						&rp, sizeof(rp));

		device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);

		goto unlock;

	}



	if (cp->disconnect) {

		if (cp->addr.type == MGMT_ADDR_BREDR)

			conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,

							&cp->addr.bdaddr);

		else

			conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,

							&cp->addr.bdaddr);

	} else {

		conn = NULL;

	}



	if (!conn) {

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE, status,

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE, 0,

							&rp, sizeof(rp));

		device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);

		goto unlock;
@@ -1624,9 +1629,6 @@ static int unpair_device(struct sock *sk, u16 index, void *data, u16 len) 
		mgmt_pending_remove(cmd);



unlock:

	if (err < 0)

		err = cmd_complete(sk, index, MGMT_OP_UNPAIR_DEVICE, status,

							&rp, sizeof(rp));

	hci_dev_unlock(hdev);

	hci_dev_put(hdev);

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