linux-kernel - Re: [PATCH] serial: 8250: remove return statements from void function

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Message-ID: <CAK7LNARZfr4OS0oS_sGr1zG=G+=pwzCPZNGSC+_wi3+pRza=_A@mail.gmail.com>
Date:	Mon, 25 May 2015 10:53:03 +0900
From:	Masahiro Yamada <yamada.masahiro@...ionext.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-serial@...r.kernel.org,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Jiri Slaby <jslaby@...e.cz>,
	Peter Hurley <peter@...leysoftware.com>,
	Alan Cox <alan@...ux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
	Tony Lindgren <tony@...mide.com>,
	Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
Subject: Re: [PATCH] serial: 8250: remove return statements from void function

2015-05-25 4:46 GMT+09:00 Greg Kroah-Hartman <gregkh@...uxfoundation.org>:
> On Mon, May 11, 2015 at 12:30:22PM +0900, Masahiro Yamada wrote:
>> serial8250_set_mctrl() is a void type function.  Returning something
>> does not look nice.
>>
>> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
>> ---
>>
>>  drivers/tty/serial/8250/8250_core.c | 5 +++--
>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
>> index 4882027..146f56c 100644
>> --- a/drivers/tty/serial/8250/8250_core.c
>> +++ b/drivers/tty/serial/8250/8250_core.c
>> @@ -2019,8 +2019,9 @@ EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl);
>>  static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
>>  {
>>       if (port->set_mctrl)
>> -             return port->set_mctrl(port, mctrl);
>> -     return serial8250_do_set_mctrl(port, mctrl);
>> +             port->set_mctrl(port, mctrl);
>> +     else
>> +             serial8250_do_set_mctrl(port, mctrl);
>>  }
>
> You just changed the logic here!


Could you tell me why?

The logic still looks the same to me.




-- 
Best Regards
Masahiro Yamada
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