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Fully initialize allocated memory for the new barrier. The

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b_destroying member was left uninitialized, which caused spurious
EBUSY.

PR:	197365
Noted by:	Florent Guiliani <fguiliani@verisign.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2015-02-06 12:18:38 +00:00
parent 78a786f909
commit 83d74204c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=278313
1 changed files with 1 additions and 4 deletions
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5
lib/libthr/thread/thr_barrier.c
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@ -86,16 +86,13 @@ _pthread_barrier_init(pthread_barrier_t *barrier,
if (barrier == NULL || count <= 0)
return (EINVAL);
bar = malloc(sizeof(struct pthread_barrier));
bar = calloc(1, sizeof(struct pthread_barrier));
if (bar == NULL)
return (ENOMEM);
_thr_umutex_init(&bar->b_lock);
_thr_ucond_init(&bar->b_cv);
bar->b_cycle = 0;
bar->b_waiters = 0;
bar->b_count = count;
bar->b_refcount = 0;
*barrier = bar;
return (0);