linux-kernel - Re: [PATCH] staging: r8188eu: make rtw_deinit_intf

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Date:   Tue, 24 Aug 2021 00:29:16 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     Phillip Potter <phil@...lpotter.co.uk>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Greg KH <gregkh@...uxfoundation.org>,
        Michael Straube <straube.linux@...il.com>,
        "open list:STAGING SUBSYSTEM" <linux-staging@...ts.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] staging: r8188eu: make rtw_deinit_intf_priv return void

On 8/24/21 12:20 AM, Phillip Potter wrote:
> On Mon, 23 Aug 2021 at 19:41, Pavel Skripkin <paskripkin@...il.com> wrote:
>>
>> rtw_deinit_intf_priv() always return success, so there is no need in
>> return value
>>
>> Signed-off-by: Pavel Skripkin <paskripkin@...il.com>
>> ---
>>  drivers/staging/r8188eu/os_dep/usb_intf.c | 5 +----
>>  1 file changed, 1 insertion(+), 4 deletions(-)
>>
>> diff --git a/drivers/staging/r8188eu/os_dep/usb_intf.c b/drivers/staging/r8188eu/os_dep/usb_intf.c
>> index e002070f7fba..37694aa96d13 100644
>> --- a/drivers/staging/r8188eu/os_dep/usb_intf.c
>> +++ b/drivers/staging/r8188eu/os_dep/usb_intf.c
>> @@ -129,13 +129,10 @@ static u8 rtw_init_intf_priv(struct dvobj_priv *dvobj)
>>         return rst;
>>  }
>>
>> -static u8 rtw_deinit_intf_priv(struct dvobj_priv *dvobj)
>> +static void rtw_deinit_intf_priv(struct dvobj_priv *dvobj)
>>  {
>> -       u8 rst = _SUCCESS;
>> -
>>         kfree(dvobj->usb_alloc_vendor_req_buf);
>>         _rtw_mutex_free(&dvobj->usb_vendor_req_mutex);
>> -       return rst;
>>  }
>>
>>  static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
>> --
>> 2.32.0
>>
> 
> Dear Pavel,
> 
> Looks good - going to test your RFC series now btw.
> 

Thank you, Phillip!


Testing this RFC is very important. If it's all ok with it, I am going 
to add proper error handling all across the driver code, based on read() 
errors :)

Btw, we also can add error handling for write() operations, but I think 
it's not _very_ important, since driver won't misbehave in case of write 
failures



With regards,
Pavel Skripkin