linux-kernel - Re: [PATCH] drivers: staging: ft1000: ft1000-usb: initialize 'status' with STATUS_SUCCESS in request_code

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Message-ID: <529EDA69.9060803@gmail.com>
Date:	Wed, 04 Dec 2013 15:31:53 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	Josh Triplett <josh@...htriplett.org>
CC:	marek.belisko@...il.com, kelleynnn@...il.com,
	linux@...nbow-software.org, peter.p.waskiewicz.jr@...el.com,
	rkuo <rkuo@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] drivers: staging: ft1000: ft1000-usb: initialize 'status'
 with STATUS_SUCCESS in request_code_segment()


Oh, another member has already fixed it (found earlier than me), and
integrated it into next-20131203 tree, so this patch is obsoleted.

The related git commit is "8aced95 staging: ft1000: fix use of
potentially uninitialized variable"

Thanks.

On 11/27/2013 05:27 PM, Chen Gang wrote:
> On 11/27/2013 05:18 PM, Josh Triplett wrote:
>> On Wed, Nov 27, 2013 at 11:01:18AM +0800, Chen Gang wrote:
>>> If "!bool_case", it returns unexpected value instead of STATUS_SUCCESS,
>>> so need fix it, the related warning (with allmodconfig under hexagon):
>>>
>>>     CC [M]  drivers/staging/ft1000/ft1000-usb/ft1000_download.o
>>>   drivers/staging/ft1000/ft1000-usb/ft1000_download.c: In function 'request_code_segment':
>>>   drivers/staging/ft1000/ft1000-usb/ft1000_download.c:581:6: warning: 'status' may be used uninitialized in this function [-Wuninitialized]
>>>
>>>
>>> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
>>
>> Reviewed-by: Josh Triplett <josh@...htriplett.org>
>>
> 
> Thanks.  :-)
> 
>>>  .../staging/ft1000/ft1000-usb/ft1000_download.c    |    2 +-
>>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
>>> index 68ded17..15f3062 100644
>>> --- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
>>> +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
>>> @@ -578,7 +578,7 @@ static int request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
>>>  		 u8 **c_file, const u8 *endpoint, bool boot_case)
>>>  {
>>>  	long word_length;
>>> -	int status;
>>> +	int status = STATUS_SUCCESS;
>>>  
>>>  	/*DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");i*/
>>>  	word_length = get_request_value(ft1000dev);
>>> -- 
>>> 1.7.7.6
> 
> 


-- 
Chen Gang
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