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net/route: Fix null pointer access when ramroute is full

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Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
This commit is contained in:
Zhe Weng 2024-01-03 14:56:54 +08:00 committed by Xiang Xiao
parent 688f0e9117
commit 54f3452293
1 changed files with 10 additions and 0 deletions
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10
net/route/net_alloc_ramroute.c
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@ -159,6 +159,11 @@ FAR struct net_route_ipv4_s *net_allocroute_ipv4(void)
route = ramroute_ipv4_remfirst(&g_free_ipv4routes);
net_unlock();
if (!route)
{
return NULL;
}
return &route->entry;
}
#endif
@ -177,6 +182,11 @@ FAR struct net_route_ipv6_s *net_allocroute_ipv6(void)
route = ramroute_ipv6_remfirst(&g_free_ipv6routes);
net_unlock();
if (!route)
{
return NULL;
}
return &route->entry;
}
#endif