From f22049e35977f7974437ea251dfa0033497e046e Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 6 Aug 2013 19:17:08 -0400
Subject: [PATCH] Fix an unlikely but possible error case for http connections

Found by coverity
---
 http.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/http.c b/http.c
index 55190e26..7b5326c9 100644
--- a/http.c
+++ b/http.c
@@ -1419,6 +1419,12 @@ evhttp_connection_cb(struct bufferevent *bufev, short what, void *arg)
 		return;
 	}
 
+	if (evcon->fd == -1) {
+		event_debug(("%s: bufferevent_getfd returned -1",
+			__func__));
+		goto cleanup;
+	}
+
 	/* Check if the connection completed */
 	if (getsockopt(evcon->fd, SOL_SOCKET, SO_ERROR, (void*)&error,
 		       &errsz) == -1) {