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mac80211: check return value of rhashtable_init

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When rhashtable_init() fails, it returns -EINVAL.
However, since error return value of rhashtable_init is not checked,
it can cause use of uninitialized pointers.
So, fix unhandled errors of rhashtable_init.

Signed-off-by: MichelleJin <shjy180909@gmail.com>
Link: https://lore.kernel.org/r/20210927033457.1020967-4-shjy180909@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
MichelleJin 2021-09-27 03:34:57 +00:00 committed by Johannes Berg
parent 94513069eb
commit 111461d573
1 changed files with 4 additions and 1 deletions
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5
net/mac80211/mesh_pathtbl.c
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@ -60,7 +60,10 @@ static struct mesh_table *mesh_table_alloc(void)
atomic_set(&newtbl->entries, 0);
spin_lock_init(&newtbl->gates_lock);
spin_lock_init(&newtbl->walk_lock);
rhashtable_init(&newtbl->rhead, &mesh_rht_params);
if (rhashtable_init(&newtbl->rhead, &mesh_rht_params)) {
kfree(newtbl);
return NULL;
}
return newtbl;
}