diff options
Diffstat (limited to 'nptl/pthread_attr_getstack.c')
| -rw-r--r-- | nptl/pthread_attr_getstack.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/nptl/pthread_attr_getstack.c b/nptl/pthread_attr_getstack.c index 03907b7242..696d8c07f6 100644 --- a/nptl/pthread_attr_getstack.c +++ b/nptl/pthread_attr_getstack.c @@ -31,6 +31,9 @@ __pthread_attr_getstack (attr, stackaddr, stacksize) assert (sizeof (*attr) >= sizeof (struct pthread_attr)); iattr = (struct pthread_attr *) attr; + if (!(iattr->flags & ATTR_FLAG_STACKADDR)) + return EINVAL; + /* Store the result. */ *stackaddr = (char *) iattr->stackaddr - iattr->stacksize; *stacksize = iattr->stacksize; |