linux-kernel - Re: [Linux-cifsd-devel] [PATCH] cifsd: use kfree to free memory allocated by kzalloc

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Message-ID: <CAKYAXd-ou4-jf7_8xa4jDQ_otyQ9ffKhwD7WZrmrna1P3b_W8Q@mail.gmail.com>
Date:   Thu, 1 Apr 2021 21:43:23 +0900
From:   Namjae Jeon <linkinjeon@...nel.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Muhammad Usama Anjum <musamaanjum@...il.com>,
        COMMON INTERNET FILE SYSTEM SERVER 
        <linux-cifs@...r.kernel.org>,
        COMMON INTERNET FILE SYSTEM SERVER 
        <linux-cifsd-devel@...ts.sourceforge.net>,
        kernel-janitors@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        Steve French <sfrench@...ba.org>, colin.king@...onical.com
Subject: Re: [Linux-cifsd-devel] [PATCH] cifsd: use kfree to free memory
 allocated by kzalloc

2021-04-01 20:50 GMT+09:00, Dan Carpenter <dan.carpenter@...cle.com>:
> On Thu, Apr 01, 2021 at 04:39:33PM +0500, Muhammad Usama Anjum wrote:
>> kfree should be used to free memory allocated by kzalloc to avoid
>> any overhead and for maintaining consistency.
>>
>> Fixes: 5dfeb6d945 ("cifsd: use kmalloc() for small allocations")
>> Signed-off-by: Muhammad Usama Anjum <musamaanjum@...il.com>
>> ---
>> This one place was left in earlier patch. I've already received
>> responsse on that patch. I'm sending a separate patch.
>>
>>  fs/cifsd/transport_tcp.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fs/cifsd/transport_tcp.c b/fs/cifsd/transport_tcp.c
>> index 67163efcf472..040881893417 100644
>> --- a/fs/cifsd/transport_tcp.c
>> +++ b/fs/cifsd/transport_tcp.c
>> @@ -551,7 +551,7 @@ void ksmbd_tcp_destroy(void)
>>  	list_for_each_entry_safe(iface, tmp, &iface_list, entry) {
>>  		list_del(&iface->entry);
>>  		kfree(iface->name);
>> -		ksmbd_free(iface);
>> +		kfree(iface);
>
> We should just delete the ksmbd_free() function completely.
Yes, I have added your review comment about this to my todo-list.
I will do that.
>
> I think that cifsd is being re-written though so it might not be worth
> it.
Right.
Thanks!
>
> regards,
> dan carpenter
>
>
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