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Spotted by "daste": When unlocking the mutex owner must be set to -1

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also for error check mutexes, otherwise the next pthread_mutex_lock()
will fail.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28428 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2008-11-01 14:30:09 +00:00
parent 1ecbbd9c27
commit 8d41d0ee72
1 changed files with 5 additions and 5 deletions
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src/system/libroot/posix/pthread/pthread_mutex.c
+5 -5
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@@ -160,13 +160,13 @@ pthread_mutex_unlock(pthread_mutex_t *mutex)
if (mutex->owner != find_thread(NULL)) if (mutex->owner != find_thread(NULL))
return EPERM; return EPERM;
if (MUTEX_TYPE(mutex) == PTHREAD_MUTEX_RECURSIVE) { if (MUTEX_TYPE(mutex) == PTHREAD_MUTEX_RECURSIVE
if (mutex->owner_count-- > 1) && mutex->owner_count-- > 1) {
return B_OK; return B_OK;
mutex->owner = -1;
} }
mutex->owner = -1;
if (atomic_add((vint32*)&mutex->count, -1) > 1) if (atomic_add((vint32*)&mutex->count, -1) > 1)
return release_sem(mutex->sem); return release_sem(mutex->sem);