From 528688d01e8983763c51fbd9ccd0c797190fc0fe Mon Sep 17 00:00:00 2001
From: Eugene Kabanov <eugene.kabanov@status.im>
Date: Thu, 25 Jun 2020 09:32:41 +0300
Subject: [PATCH] Add sanity check. (#105)

---
 chronos/transports/stream.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chronos/transports/stream.nim b/chronos/transports/stream.nim
index e5052f6..5b041db 100644
--- a/chronos/transports/stream.nim
+++ b/chronos/transports/stream.nim
@@ -1143,7 +1143,7 @@ else:
     var transp = cast[StreamTransport](cdata.udata)
     let fd = SocketHandle(cdata.fd)
 
-    if int(fd) == 0:
+    if int(fd) == 0 or isNil(transp):
       ## This situation can be happen, when there events present
       ## after transport was closed.
       return
@@ -1286,7 +1286,7 @@ else:
     var cdata = cast[ptr CompletionData](udata)
     var transp = cast[StreamTransport](cdata.udata)
     let fd = SocketHandle(cdata.fd)
-    if int(fd) == 0:
+    if int(fd) == 0 or isNil(transp):
       ## This situation can be happen, when there events present
       ## after transport was closed.
       return