mod_c2s: Fix traceback in session close when conn is nil

Unclear how this happens.

1 files changed, 2 insertions, 2 deletions

diff --git a/plugins/mod_c2s.lua b/plugins/mod_c2s.lua
index f8675258..f3259ed2 100644
--- a/plugins/mod_c2s.lua
+++ b/plugins/mod_c2s.lua
@@ -190,12 +190,12 @@ local function session_close(session, reason)
 				if not session.destroyed then
 					session.log("warn", "Failed to receive a stream close response, closing connection anyway...");
 					sm_destroy_session(session, reason_text);
-					conn:close();
+					if conn then conn:close(); end
 				end
 			end);
 		else
 			sm_destroy_session(session, reason_text);
-			conn:close();
+			if conn then conn:close(); end
 		end
 	else
 		local reason_text = (reason and (reason.name or reason.text or reason.condition)) or reason;