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libs/libc/pthread/pthread_mutex: Fix robust mutex initialization

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This fixes an issue where ostest robust mutex test gets stuck.

In CONFIG_PTHREAD_MUTEX_ROBUST mode, every NORMAL mutex is robust by
definition, so the robust flag must be set to allow the mutex to be tracked
in the holder's mutex list.

Otherwise, pthread_mutex_add() will not record the mutex and
pthread_mutex_inconsistent() will not be able to mark it as inconsistent or
wake waiters when the holder thread terminates.

Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
This commit is contained in:
Jukka Laitinen 2026-06-11 16:29:16 +03:00 • committed by Xiang Xiao
parent bb025be12d
commit f442c6b05e
1 changed files with 1 additions and 1 deletions
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2
libs/libc/pthread/pthread_mutex_init.c
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@ -86,7 +86,7 @@ int pthread_mutex_init(FAR pthread_mutex_t *mutex,
mutex->flags = attr && attr->robust == PTHREAD_MUTEX_ROBUST ?
_PTHREAD_MFLAGS_ROBUST : 0;
# else
mutex->flags = 0;
mutex->flags = _PTHREAD_MFLAGS_ROBUST;
# endif
#endif