From 6ef4d0dc99284b2c599b93d5678bc6f073296d53 Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Wed, 21 Jan 2015 16:13:37 +0000
Subject: [PATCH] Fix bug in r276630.  Do not allow pthread_sigmask() to block
 SIGCANCEL.

Reported and tested by:	royger
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
---
 lib/libthr/thread/thr_sig.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/libthr/thread/thr_sig.c b/lib/libthr/thread/thr_sig.c
index 7cd0f75412d8..11a131c1c5a4 100644
--- a/lib/libthr/thread/thr_sig.c
+++ b/lib/libthr/thread/thr_sig.c
@@ -604,7 +604,8 @@ __weak_reference(_pthread_sigmask, pthread_sigmask);
 int
 _pthread_sigmask(int how, const sigset_t *set, sigset_t *oset)
 {
-	if (_sigprocmask(how, set, oset))
+
+	if (__thr_sigprocmask(how, set, oset))
 		return (errno);
 	return (0);
 }