From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 12 Feb 2014 06:03:07 +0000 (-0500)
Subject: make posix_spawn accept null pid pointer arguments
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=8011614da008032642aa8292c3fd079bf7a8843d;p=musl

make posix_spawn accept null pid pointer arguments

this is a requirement in the specification that was overlooked.
---

diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index eb98f9f6..f675a13c 100644
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -166,7 +166,7 @@ int __posix_spawnx(pid_t *restrict res, const char *restrict path,
 
 	close(args.p[0]);
 
-	if (!ec) *res = pid;
+	if (!ec && res) *res = pid;
 
 	pthread_sigmask(SIG_SETMASK, &args.oldmask, 0);
 	pthread_setcancelstate(cs, 0);