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From: Lars-Peter Clausen <lars@metafoo.de>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Greg KH <greg@kroah.com>,
	devel@driverdev.osuosl.org, linux-iio@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@suse.de>,
	Jonathan Cameron <jic23@kernel.org>
Subject: Re: [PATCH] staging:iio: Add wrapper functions around buffer access ops
Date: Wed, 14 Dec 2011 16:05:12 +0100	[thread overview]
Message-ID: <4EE8BB28.3060807@metafoo.de> (raw)
In-Reply-To: <20111214143144.GL3503@mwanda>

On 12/14/2011 03:31 PM, Dan Carpenter wrote:
> On Wed, Dec 14, 2011 at 11:15:49AM +0100, Lars-Peter Clausen wrote:
>> Marking the function as __must_check doesn't make much sense here. Since it
>> will either return an error or the buffer length. So you'll always use the
>> returned result one way or the other.
> 
> Isn't that the point of a __must_check?

My understanding is that you should use __must_check if it is potentially
dangerous to ignore the return value. Which is not the case here, if you
don't look at the return value it's kind of pointless to call the function
in the first, but it is not dangerous.

- Lars

  reply	other threads:[~2011-12-14 15:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-12 10:08 [PATCH] staging:iio: Add wrapper functions around buffer access ops Lars-Peter Clausen
2011-12-13  0:45 ` Greg KH
2011-12-13  9:01   ` Lars-Peter Clausen
2011-12-13 23:59     ` Greg KH
2011-12-14  7:19       ` Jonathan Cameron
2011-12-14 10:15       ` Lars-Peter Clausen
2011-12-14 14:31         ` Dan Carpenter
2011-12-14 15:05           ` Lars-Peter Clausen [this message]
2011-12-14 16:42             ` Dan Carpenter
2011-12-14 15:49         ` Greg KH
2011-12-14 17:35           ` Lars-Peter Clausen

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