linux-kernel - Re: [PATCH v2 4/5] firmware: actually return NULL on failed request_firmware

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Date:	Thu, 7 Jan 2016 13:56:57 -0700
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Brian Norris <computersforpeace@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ming Lei <ming.lei@...onical.com>
Cc:	Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, "Luis R. Rodriguez" <mcgrof@...e.com>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH v2 4/5] firmware: actually return NULL on failed
 request_firmware_nowait()

On 12/09/2015 03:50 PM, Brian Norris wrote:
> The kerneldoc for request_firmware_nowait() says that it may call the
> provided cont() callback with @fw == NULL, if the firmware request
> fails. However, this is not the case when called with an empty string
> (""). This case is short-circuited by the 'name[0] == '\0'' check
> introduced in commit 471b095dfe0d ("firmware_class: make sure fw requests
> contain a name"), so _request_firmware() never gets to set the fw to
> NULL.
> 

Thanks for the patch. Applied to linux-kselftest next for 4.5-rc1.

thanks,
-- Shuah
-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978