From 0e68241138aa754fc05a4396e573946e55c4fa5d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sat, 15 Aug 2020 18:54:18 +0200
Subject: [PATCH] missing_syscall: add forgotten check for __NR_get_mempolicy
 nonnegativity

We do it in other cases, we should here too.

Fixup for b070c7c0e13.
---
 src/basic/missing_syscall.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/basic/missing_syscall.h b/src/basic/missing_syscall.h
index 41164ea7d0..227c2121fa 100644
--- a/src/basic/missing_syscall.h
+++ b/src/basic/missing_syscall.h
@@ -515,7 +515,7 @@ static inline long missing_get_mempolicy(int *mode, unsigned long *nodemask,
                            unsigned long maxnode, void *addr,
                            unsigned long flags) {
         long i;
-#  ifdef __NR_get_mempolicy
+#  if defined __NR_get_mempolicy && __NR_get_mempolicy >= 0
         i = syscall(__NR_get_mempolicy, mode, nodemask, maxnode, addr, flags);
 #  else
         errno = ENOSYS;