From 5c16beff9909b28f55f25f48ed7ddbf98d8b1d5c Mon Sep 17 00:00:00 2001 From: Roy Li Date: Wed, 18 Jul 2018 09:43:55 +0800 Subject: [PATCH] fix NULL pointer problem return 0 if distance_table is NULL Upstream-Status: Pending read_distance_table() maybe return 0, but distance_table is not set, if distance_table is used, and will lead to SEGFAULT Signed-off-by: Roy Li Signed-off-by: Changqing Li --- distance.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/distance.c b/distance.c index 8d472af..6a6e886 100644 --- a/distance.c +++ b/distance.c @@ -113,6 +113,8 @@ int numa_distance(int a, int b) int err = read_distance_table(); if (err < 0) return 0; + if(!distance_table) + return 0; } if ((unsigned)a >= distance_numnodes || (unsigned)b >= distance_numnodes) return 0; -- 2.7.4