linux-kernel - Re: [PATCH] staging: dgap: removes redundant null check and change paramter for dgap_maxcps

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Message-ID: <CAHb8M2BHq6N-YSP9GvZiJ7c6wZwPv-S8c416foj3D0Rom3Z4hA@mail.gmail.com>
Date:	Thu, 10 Jul 2014 08:25:47 +0900
From:	DaeSeok Youn <daeseok.youn@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Lidza Louina <lidza.louina@...il.com>,
	driverdev-devel@...uxdriverproject.org,
	linux-kernel <linux-kernel@...r.kernel.org>,
	devel <devel@...verdev.osuosl.org>
Subject: Re: [PATCH] staging: dgap: removes redundant null check and change
 paramter for dgap_maxcps_room()

Hi,

2014-07-10 4:02 GMT+09:00 Greg KH <gregkh@...uxfoundation.org>:
> On Mon, Jul 07, 2014 at 10:27:54AM +0900, Daeseok Youn wrote:
>> Null checks for tty, un and ch are already done by caller,
>> so replace parameter "tty" with "ch" and "un".
>>
>> And also use a pointer for returning new bytes_available instead of
>> return variable.
>
> Why make that change?  It's nicer to return a real value where ever
> possible.  That's more like other "room" functions in the tty layer.
I was looking at use cases of dgap_maxcps_room() in dgap.c,
 byte_available variable in caller is reused for that. So I tried to
change like this patch.
>
> Care to fix this up to just do the first change you made to the function
> instead?
OK, I will just change parameters for dgap_maxcps_room() and send again.
thanks.

regards,
Daeseok Youn.
>
> thanks,
>
> greg k-h
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