Bluetooth: Fix initializing conn_params in scan phase

This patch makes sure that conn_params that were created just for
explicit_connect, will get properly deleted during cleanup.

Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 15 insertions, 7 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index fe99025fb649..2dda439c8cb8 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1008,15 +1008,23 @@ static int hci_explicit_conn_params_set(struct hci_request *req,
 	if (is_connected(hdev, addr, addr_type))
 		return -EISCONN;
 
-	params = hci_conn_params_add(hdev, addr, addr_type);
-	if (!params)
-		return -EIO;
+	params = hci_conn_params_lookup(hdev, addr, addr_type);
+	if (!params) {
+		params = hci_conn_params_add(hdev, addr, addr_type);
+		if (!params)
+			return -ENOMEM;
+
+		/* If we created new params, mark them to be deleted in
+		 * hci_connect_le_scan_cleanup. It's different case than
+		 * existing disabled params, those will stay after cleanup.
+		 */
+		params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
+	}
 
-	/* If we created new params, or existing params were marked as disabled,
-	 * mark them to be used just once to connect.
-	 */
+	/* We're trying to connect, so make sure params are at pend_le_conns */
 	if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
-	    params->auto_connect == HCI_AUTO_CONN_REPORT) {
+	    params->auto_connect == HCI_AUTO_CONN_REPORT ||
+	    params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
 		list_del_init(&params->action);
 		list_add(&params->action, &hdev->pend_le_conns);
 	}