NFC: llcp: Do not send pending Tx frames when the remote is not ready

When we receive a RNR, the remote is busy processing the last received
frame. We set a local flag for that, and we should send a SYMM when it
is set instead of sending any pending frame.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 44730f0edfd8..47746a088f8f 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -721,6 +721,9 @@ static void nfc_llcp_tx_work(struct work_struct *work)
                 if (llcp_sock == NULL && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
                         kfree_skb(skb);
                         nfc_llcp_send_symm(local->dev);
+                } else if (llcp_sock && !llcp_sock->remote_ready) {
+                        skb_queue_head(&local->tx_queue, skb);
+                        nfc_llcp_send_symm(local->dev);
                 } else {
                         struct sk_buff *copy_skb = NULL;
                         u8 ptype = nfc_llcp_ptype(skb);