Fixed PR_SetThreadAffinityMask, which returned random value on Irix.

Bugzilla #21621.


git-svn-id: svn://10.0.0.236/trunk@56414 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/nsprpub/pr/src/threads/prcthr.c

@@ -298,6 +298,8 @@ PR_IMPLEMENT(PRInt32) PR_SetThreadAffinityMask(PRThread *thread, PRUint32 mask )
 #ifdef HAVE_THREAD_AFFINITY
 #ifndef IRIX
     return _PR_MD_SETTHREADAFFINITYMASK(thread, mask);
+#else
+	return 0;
 #endif
 #else