netdev - Re: [PATCH] net: ethernet: chelsio: cxgb4: t4_hw.c: Cleaning up uninitialized variables

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Date:	Sun, 1 Jun 2014 21:36:57 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Dimitrios Michailidis <dm@...lsio.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: ethernet: chelsio: cxgb4: t4_hw.c: Cleaning up
 uninitialized variables

Hi Dimitrios!

Okay sorry, I see what you mean...

Best regards
Rickard Strandqvist


2014-06-01 21:11 GMT+02:00 Dimitrios Michailidis <dm@...lsio.com>:
> Rickard Strandqvist wrote:
>> There is a risk that the variable will be used without being initialized.
>
> There isn't actual risk here, this variable is not used uninitialized AFAICS.
>
>> This was largely found by using a static code analysis program called cppcheck.
>
> It seems this is a false inference by the tool.  I think the preferred method to suppress false tool warnings is to use uninitialized_var.
>
>> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
>> ---
>>  drivers/net/ethernet/chelsio/cxgb4/t4_hw.c |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
>> b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
>> index bba6768..326c005 100644
>> --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
>> +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
>> @@ -571,7 +571,7 @@ int t4_seeprom_wp(struct adapter *adapter, bool
>> enable)
>>   */
>>  int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
>>  {
>> -     u32 cclk_param, cclk_val;
>> +     u32 cclk_param, cclk_val = 0;
>>       int i, ret, addr;
>>       int ec, sn, pn;
>>       u8 *vpd, csum;
>> --
>> 1.7.10.4
>
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