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[PATCH] 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>
---
distance.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/distance.c b/distance.c
index 4a26972..c6ca021 100755
--- 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;
}
return distance_table[a * distance_numnodes + b];
}
--
1.7.10.4
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