NFC: Send a receiver ready frame only to reply to an I frame

Sending an RR as a reply to another RR is fine but not quite logical.
We should send RRs only as a reply to I frames.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 0fc60da6a0a1d02d764a75227a9a2cbc751ac387..3fe68e1d2e88b4ca0dc75cf806617c8aba0c6377 100644 (file)
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -810,7 +810,7 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
        else if (ptype == LLCP_PDU_RNR)
                llcp_sock->remote_ready = false;
 
-       if (nfc_llcp_queue_i_frames(llcp_sock) == 0)
+       if (nfc_llcp_queue_i_frames(llcp_sock) == 0 && ptype == LLCP_PDU_I)
                nfc_llcp_send_rr(llcp_sock);
 
        release_sock(sk);