[src/trunk]: src/lib/libpthread return errno if pthread_create hits the syste...

[drochner <drochner%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/469e7941269b
branches:  trunk
changeset: 781017:469e7941269b
user:      drochner <drochner%NetBSD.org@localhost>
date:      Wed Aug 15 13:28:32 2012 +0000

description:
return errno if pthread_create hits the system limit, not just -1
(this is not entirely correct because it can return ENOMEM which is
not mentioned in the spec, but there are other places in pthread_create
whete ENOMEM is returned -- it at all, this should be fixed everywhere)

diffstat:

 lib/libpthread/pthread.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 5589d0d23b3b -r 469e7941269b lib/libpthread/pthread.c
--- a/lib/libpthread/pthread.c  Wed Aug 15 12:50:12 2012 +0000
+++ b/lib/libpthread/pthread.c  Wed Aug 15 13:28:32 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pthread.c,v 1.136 2012/08/02 12:43:41 joerg Exp $      */
+/*     $NetBSD: pthread.c,v 1.137 2012/08/15 13:28:32 drochner Exp $   */
 
 /*-
  * Copyright (c) 2001, 2002, 2003, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: pthread.c,v 1.136 2012/08/02 12:43:41 joerg Exp $");
+__RCSID("$NetBSD: pthread.c,v 1.137 2012/08/15 13:28:32 drochner Exp $");
 
 #define        __EXPOSE_STACK  1
 
@@ -498,6 +498,7 @@
                flag |= LWP_SUSPENDED;
        ret = _lwp_create(&newthread->pt_uc, flag, &newthread->pt_lid);
        if (ret != 0) {
+               ret = errno;
                pthread_mutex_lock(&newthread->pt_lock);
                /* Will unlock and free name. */
                pthread__reap(newthread);