hci_h5: Don't send conf_req when ACTIVE

Without this patch, a modem and kernel can continuously bombard each
other with conf_req and conf_rsp messages, in a demented game of tag.

diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index d49a39d..6091727 100644 (file)
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -357,7 +357,8 @@ static void h5_handle_internal_rx(struct hci_uart *hu)
                h5_link_control(hu, conf_req, 3);
        } else if (memcmp(data, conf_req, 2) == 0) {
                h5_link_control(hu, conf_rsp, 2);
-               h5_link_control(hu, conf_req, 3);
+               if (h5->state != H5_ACTIVE)
+                   h5_link_control(hu, conf_req, 3);
        } else if (memcmp(data, conf_rsp, 2) == 0) {
                if (H5_HDR_LEN(hdr) > 2)
                        h5->tx_win = (data[2] & 0x07);