--- rpl/src/interruptions.c	2013/05/23 09:20:08	1.130
+++ rpl/src/interruptions.c	2013/05/23 12:45:08	1.131
@@ -2974,8 +2974,14 @@ envoi_signal_thread(pthread_t tid, enum
 
 	struct_processus						*s_etat_processus;
 
+	if (pthread_mutex_lock(&mutex_interruptions) != 0)
+	{
+		return(1);
+	}
+
 	if (pthread_mutex_lock(&mutex_liste_threads) != 0)
 	{
+		pthread_mutex_unlock(&mutex_interruptions);
 		return(1);
 	}
 
@@ -3002,25 +3008,19 @@ envoi_signal_thread(pthread_t tid, enum
 	s_etat_processus = (*((struct_thread *) (*l_element_courant).donnee))
 			.s_etat_processus;
 
-	if (pthread_mutex_lock(&mutex_interruptions) != 0)
-	{
-		pthread_mutex_unlock(&mutex_liste_threads);
-		return(1);
-	}
-
 	(*s_etat_processus).signaux_en_queue
 			[(*s_etat_processus).pointeur_signal_ecriture] = signal;
 	(*s_etat_processus).pointeur_signal_ecriture =
 			((*s_etat_processus).pointeur_signal_ecriture + 1)
 			% LONGUEUR_QUEUE_SIGNAUX;
 
-	if (pthread_mutex_unlock(&mutex_interruptions) != 0)
+	if (pthread_mutex_unlock(&mutex_liste_threads) != 0)
 	{
-		pthread_mutex_unlock(&mutex_liste_threads);
+		pthread_mutex_unlock(&mutex_interruptions);
 		return(1);
 	}
 
-	if (pthread_mutex_unlock(&mutex_liste_threads) != 0)
+	if (pthread_mutex_unlock(&mutex_interruptions) != 0)
 	{
 		return(1);
 	}