From 79b25a911be36da87aa012b23e854a3bed01833c Mon Sep 17 00:00:00 2001
From: Ico Doornekamp <ico@zevv.nl>
Date: Mon, 21 Nov 2022 13:11:28 +0100
Subject: channel send() condition variable lock ordering (#20879)

---
 lib/system/channels_builtin.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/system')

diff --git a/lib/system/channels_builtin.nim b/lib/system/channels_builtin.nim
index 50d740b23..fbe3f0e98 100644
--- a/lib/system/channels_builtin.nim
+++ b/lib/system/channels_builtin.nim
@@ -363,8 +363,8 @@ proc sendImpl(q: PRawChannel, typ: PNimType, msg: pointer, noBlock: bool): bool
 
   rawSend(q, msg, typ)
   q.elemType = typ
-  releaseSys(q.lock)
   signalSysCond(q.cond)
+  releaseSys(q.lock)
   result = true
 
 proc send*[TMsg](c: var Channel[TMsg], msg: sink TMsg) {.inline.} =
-- 
cgit 1.4.1-2-gfad0