From: Ivan Maidanski <ivmai@mail.ru>
Date: Wed, 12 Sep 2012 05:46:41 +0000 (+0400)
Subject: Eliminate 'unused value' compiler warning in GC_stop_world (Pthreads)
X-Git-Tag: gc7_4_0~209
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cd7027e6bea0e9d1894d9d79d64a838069bf3e26;p=gc

Eliminate 'unused value' compiler warning in GC_stop_world (Pthreads)

* pthread_stop_world.c (GC_stop_world): Eliminate
"assigned value never used" compiler warning for "code" local variable
in conditional statement checking sem_wait result.
---

diff --git a/pthread_stop_world.c b/pthread_stop_world.c
index a0132030..d9231b4a 100644
--- a/pthread_stop_world.c
+++ b/pthread_stop_world.c
@@ -620,7 +620,8 @@ GC_INNER void GC_stop_world(void)
 
     for (i = 0; i < n_live_threads; i++) {
       retry:
-        if (0 != (code = sem_wait(&GC_suspend_ack_sem))) {
+        code = sem_wait(&GC_suspend_ack_sem);
+        if (0 != code) {
           /* On Linux, sem_wait is documented to always return zero.    */
           /* But the documentation appears to be incorrect.             */
           if (errno == EINTR) {