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isisd: fix potential null pointer in isis_affinity_map_update()

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Reported by coverity scanner #1560315

Do not attempt to update the affinity map if the main isis struct is not
yet created.

Fixes: 9a65cf35da ("isisd: add affinity-map configuration hooks")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This commit is contained in:
Louis Scalbert 2023-04-19 15:11:36 +02:00
parent eb74bbd5b3
commit 60f9275a8c
1 changed files with 3 additions and 0 deletions
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3
isisd/isis_affinitymap.c
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@ -49,6 +49,9 @@ static void isis_affinity_map_update(const char *affmap_name, uint16_t old_pos,
struct flex_algo *fa;
bool changed;
if (!isis)
return;
for (ALL_LIST_ELEMENTS_RO(isis->area_list, area_node, area)) {
changed = false;
for (ALL_LIST_ELEMENTS_RO(area->flex_algos->flex_algos, fa_node,