From 395f7b29b48cddc0b189e3610879f82b182c5438 Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Mon, 4 Aug 2014 19:10:14 +0200
Subject: [PATCH] Fix dregister not being thread safe.

---
 libc/dirent/dregister.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libc/dirent/dregister.cpp b/libc/dirent/dregister.cpp
index 2026fd9c..1b4516cf 100644
--- a/libc/dirent/dregister.cpp
+++ b/libc/dirent/dregister.cpp
@@ -30,8 +30,10 @@ extern "C" pthread_mutex_t __dirname_lock;
 
 extern "C" void dregister(DIR* dir)
 {
+	pthread_mutex_lock(&__dirname_lock);
 	dir->flags |= _DIR_REGISTERED;
 	if ( (dir->next = __firstdir) )
 		dir->next->prev = dir;
 	__firstdir = dir;
+	pthread_mutex_unlock(&__dirname_lock);
 }