From: Simon Ruderich <simon@ruderich.org>
Date: Sun, 28 Jul 2013 12:21:20 +0000 (+0200)
Subject: sem.c: Fix P() for negative start values.
X-Git-Url: https://ruderich.org/simon/gitweb/?a=commitdiff_plain;h=9f3f278ae8e7d4b2daa5ca8d331bca70bb550c76;p=tlsproxy%2Ftlsproxy.git

sem.c: Fix P() for negative start values.
---

diff --git a/src/sem.c b/src/sem.c
index 0df93c6..ee03e0b 100644
--- a/src/sem.c
+++ b/src/sem.c
@@ -69,7 +69,7 @@ int sem_del(SEM *sem) {
 
 void P(SEM *sem) {
     pthread_mutex_lock(&sem->mutex);
-    while (sem->value == 0) {
+    while (sem->value <= 0) {
         pthread_cond_wait(&sem->condition, &sem->mutex);
     }
     sem->value--;