Bluetooth: Send correct response to IO Capability Request

This patch sends correct IO Capability response to remote device
in case Local Device supports KeyBoardDisplay IO Capability as
this capability is not valid as per BT spec for IO capability
Request Reply Command.
This capability is mapped to DisplayYesNo which is in accordance
with BT spec.

Signed-off-by: Hemant Gupta <hemant.gupta@stericsson.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 6fb9016652b7c3ec737279a2eb7cde0d88db5a6f..041a35eb25c6ccc2a5dfa9040e8b9a8db9de9e98 100644 (file)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2965,7 +2965,10 @@ static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff
                struct hci_cp_io_capability_reply cp;
 
                bacpy(&cp.bdaddr, &ev->bdaddr);
-               cp.capability = conn->io_capability;
+               /* Change the IO capability from KeyboardDisplay
+                * to DisplayYesNo as it is not supported by BT spec. */
+               cp.capability = (conn->io_capability == 0x04) ?
+                                               0x01 : conn->io_capability;
                conn->auth_type = hci_get_auth_req(conn);
                cp.authentication = conn->auth_type;