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mac80211_hwsim: fix module init error paths

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We didn't free the workqueue on any errors, nor did we
correctly check for rhashtable allocation errors, nor
did we free the hashtable on error.

Reported-by: Colin King <colin.king@canonical.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
This commit is contained in:
Johannes Berg 2018-05-29 12:04:51 +02:00 committed by Johannes Berg
parent 3c12d04868
commit 3f61b7a30a
1 changed files with 9 additions and 2 deletions
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11
drivers/net/wireless/mac80211_hwsim.c
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@ -3572,11 +3572,14 @@ static int __init init_mac80211_hwsim(void)
hwsim_wq = alloc_workqueue("hwsim_wq", 0, 0);
if (!hwsim_wq)
return -ENOMEM;
rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
if (err)
goto out_free_wq;
err = register_pernet_device(&hwsim_net_ops);
if (err)
return err;
goto out_free_rht;
err = platform_driver_register(&mac80211_hwsim_driver);
if (err)
@ -3701,6 +3704,10 @@ out_unregister_driver:
platform_driver_unregister(&mac80211_hwsim_driver);
out_unregister_pernet:
unregister_pernet_device(&hwsim_net_ops);
out_free_rht:
rhashtable_destroy(&hwsim_radios_rht);
out_free_wq:
destroy_workqueue(hwsim_wq);
return err;
}
module_init(init_mac80211_hwsim);