| From 5c16beff9909b28f55f25f48ed7ddbf98d8b1d5c Mon Sep 17 00:00:00 2001 |
| From: Roy Li <rongqing.li@windriver.com> |
| 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 <rongqing.li@windriver.com> |
| |
| Signed-off-by: Changqing Li <changqing.li@windriver.com> |
| --- |
| 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 |
| |