From 63f34e00646f9128903f0c45106c46416451eeac Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Fri, 7 Oct 2016 20:52:46 +0200
Subject: [PATCH] l2cap: log error if channel not found

---
 src/l2cap.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/l2cap.c b/src/l2cap.c
index 7a4bd03cd..84d8f4f0d 100644
--- a/src/l2cap.c
+++ b/src/l2cap.c
@@ -1775,7 +1775,10 @@ static int l2cap_le_signaling_handler_dispatch(hci_con_handle_t handle, uint8_t
             // find channel
             local_cid = little_endian_read_16(command, L2CAP_SIGNALING_COMMAND_DATA_OFFSET + 0);
             channel = l2cap_le_get_channel_for_local_cid(local_cid);
-            if (!channel) break;
+            if (!channel) {
+                log_error("l2cap: no channel for cid 0x%02x", local_cid);
+                break;
+            }
             channel->remote_sig_id = sig_id;
             channel->state = L2CAP_STATE_WILL_SEND_DISCONNECT_RESPONSE;
             break;