From c89f1b0ecf95546a53a055693d05cf29024806fb Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 10 Apr 2000 04:51:05 +0000
Subject: [PATCH] (sigaction): Fix return value for the case SIG is one of the
 signals the implementation uses.

---
 linuxthreads/signals.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/linuxthreads/signals.c b/linuxthreads/signals.c
index 47124cf48a9..951abec8997 100644
--- a/linuxthreads/signals.c
+++ b/linuxthreads/signals.c
@@ -132,7 +132,10 @@ int sigaction(int sig, const struct sigaction * act,
   if (sig == __pthread_sig_restart ||
       sig == __pthread_sig_cancel ||
       (sig == __pthread_sig_debug && __pthread_sig_debug > 0))
-    return EINVAL;
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
   if (act)
     {
       newact = *act;
-- 
2.47.2