From 52e6714146b46487a1260fab838a6ba193029845 Mon Sep 17 00:00:00 2001
From: Ian Gudger <igudger@google.com>
Date: Tue, 28 Aug 2018 17:25:13 -0700
Subject: fasync: don't keep mutex after return

PiperOrigin-RevId: 210637533
Change-Id: I3536c3f9efb54732a0d8ada8bc299142b2c1682f
---
 pkg/sentry/kernel/fasync/fasync.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkg/sentry/kernel/fasync/fasync.go b/pkg/sentry/kernel/fasync/fasync.go
index 15218fb5a..69c7970fa 100644
--- a/pkg/sentry/kernel/fasync/fasync.go
+++ b/pkg/sentry/kernel/fasync/fasync.go
@@ -47,6 +47,7 @@ type FileAsync struct {
 func (a *FileAsync) Callback(e *waiter.Entry) {
 	a.mu.Lock()
 	if a.e.Callback == nil {
+		a.mu.Unlock()
 		return
 	}
 	t := a.recipientT
-- 
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