fix off-by-one error in sem_(timed)wait (using old sem value instead of new)

[musl] / src / thread / pthread_condattr_setpshared.c

#include "pthread_impl.h"

int pthread_condattr_setpshared(pthread_condattr_t *a, int pshared)
{
        if (pshared > 1U) return EINVAL;
        *a &= 0x7fffffff;
        *a |= pshared<<31;
        return 0;
}