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Message-Id: <20221112133101.253026-1-izbyshev@ispras.ru>
Date: Sat, 12 Nov 2022 16:31:01 +0300
From: Alexey Izbyshev <izbyshev@...ras.ru>
To: musl@...ts.openwall.com
Subject: [PATCH] pthread_atfork: fix return value on malloc failure

POSIX requires pthread_atfork to report errors via its return value,
not via errno. The only specified error is ENOMEM.
---
 src/thread/pthread_atfork.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/thread/pthread_atfork.c b/src/thread/pthread_atfork.c
index 76497401..2fbe23ca 100644
--- a/src/thread/pthread_atfork.c
+++ b/src/thread/pthread_atfork.c
@@ -1,3 +1,4 @@
+#include <errno.h>
 #include <pthread.h>
 #include "libc.h"
 #include "lock.h"
@@ -34,7 +35,7 @@ void __fork_handler(int who)
 int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
 {
 	struct atfork_funcs *new = malloc(sizeof *new);
-	if (!new) return -1;
+	if (!new) return ENOMEM;
 
 	LOCK(lock);
 	new->next = funcs;
-- 
2.37.2

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