Author: davidxu
Date: Sat Feb 11 04:12:12 2012
New Revision: 231503
URL: http://svn.freebsd.org/changeset/base/231503
Log:
Make code more stable by checking NULL pointers.
Modified:
head/lib/libthr/thread/thr_list.c
Modified: head/lib/libthr/thread/thr_list.c
==============================================================================
--- head/lib/libthr/thread/thr_list.c Sat Feb 11 01:17:27 2012
(r231502)
+++ head/lib/libthr/thread/thr_list.c Sat Feb 11 04:12:12 2012
(r231503)
@@ -154,8 +154,12 @@ _thr_alloc(struct pthread *curthread)
atomic_fetchadd_int(&total_threads, -1);
return (NULL);
}
- thread->sleepqueue = _sleepq_alloc();
- thread->wake_addr = _thr_alloc_wake_addr();
+ if ((thread->sleepqueue = _sleepq_alloc()) == NULL ||
+ (thread->wake_addr = _thr_alloc_wake_addr()) == NULL) {
+ thr_destroy(curthread, thread);
+ atomic_fetchadd_int(&total_threads, -1);
+ return (NULL);
+ }
} else {
bzero(&thread->_pthread_startzero,
__rangeof(struct pthread, _pthread_startzero,
_pthread_endzero));
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