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Fix return value for setcontext and swapcontext.

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This commit is contained in:
David Xu 2013-05-09 04:41:03 +00:00
parent bc1062559e
commit 66f6c2721d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=250402
1 changed files with 8 additions and 4 deletions
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12
lib/libthr/thread/thr_sig.c
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@ -725,8 +725,10 @@ _setcontext(const ucontext_t *ucp)
{
ucontext_t uc;
if (ucp == NULL)
return (EINVAL);
if (ucp == NULL) {
errno = EINVAL;
return (-1);
}
if (!SIGISMEMBER(uc.uc_sigmask, SIGCANCEL))
return __sys_setcontext(ucp);
(void) memcpy(&uc, ucp, sizeof(uc));
@ -740,8 +742,10 @@ _swapcontext(ucontext_t *oucp, const ucontext_t *ucp)
{
ucontext_t uc;
if (oucp == NULL || ucp == NULL)
return (EINVAL);
if (oucp == NULL || ucp == NULL) {
errno = EINVAL;
return (-1);
}
if (SIGISMEMBER(ucp->uc_sigmask, SIGCANCEL)) {
(void) memcpy(&uc, ucp, sizeof(uc));
SIGDELSET(uc.uc_sigmask, SIGCANCEL);