linux-kernel - Re: [PATCH] qtnfmac: fix NULL pointer dereference

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Message-ID: <14b57d7b-15cf-dfd8-d64c-2200d435d2f6@embeddedor.com>
Date:   Fri, 1 Jun 2018 09:22:28 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Igor Mitsyanko <imitsyanko@...ntenna.com>,
        Avinash Patil <avinashp@...ntenna.com>,
        Sergey Matyukevich <smatyukevich@...ntenna.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] qtnfmac: fix NULL pointer dereference

Hi Sergey,

On 06/01/2018 09:08 AM, Sergey Matyukevich wrote:
> Hello Gustavo,
> 
>> diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
>> index 220e2b7..ae0ca80 100644
>> --- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
>> +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
>> @@ -654,8 +654,7 @@ qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev,
>>          vif = qtnf_mac_get_base_vif(mac);
>>          if (!vif) {
>>                  pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
>> -               ret = -EFAULT;
>> -               goto out;
>> +               return -EFAULT;
>>          }
>>
>>          if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
> 
> That was my fault. Thanks for the fix!
> 

Glad to help. :)

> Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@...nenna.com>
> 

Thanks
--
Gustavo