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Date: Mon, 16 Nov 2015 10:21:25 +0100
From: Ivan Vecera <ivecera@...hat.com>
To: Sathya Perla <sathya.perla@...gotech.com>
Cc: netdev@...r.kernel.org,
Sriharsha Basavapatna <sriharsha.basavapatna@...gotech.com>,
Ajit Kumar Khaparde <ajit.khaparde@...gotech.com>,
Padmanabh Ratnakar <padmanabh.ratnakar@...gotech.com>
Subject: Re: [PATCH net] be2net: check properly status in
lancer_cmd_get_file_len()
On 11/16/2015 09:57 AM, Sathya Perla wrote:
> On Fri, Nov 13, 2015 at 3:22 PM, Ivan Vecera <ivecera@...hat.com> wrote:
>> The lancer_cmd_get_file_len() calls lancer_cmd_read_object() to get
>> the current size of registers for ethtool registers dump. The size
>> is stored in data_read but only when the returned status is 0 otherwise
>> it is uninitialized thus random.
>>
>> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
>> ---
>> drivers/net/ethernet/emulex/benet/be_ethtool.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
>> index f4cb8e4..26b6192 100644
>> --- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
>> +++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
>> @@ -248,6 +248,8 @@ static u32 lancer_cmd_get_file_len(struct be_adapter *adapter, u8 *file_name)
>> status = lancer_cmd_read_object(adapter, &data_len_cmd, 0, 0,
>> file_name, &data_read, &eof,
>> &addn_status);
>> + if (status)
>> + return 0;
>>
>> return data_read;
>
> Ivan, unless I'm missing something...I see that "data_read" is
> initialized to 0 in this routine. So, this routine will return 0 when
> lancer_cmd_read_object() returns a non-zero status.
Yeah, you are right...my bad eyes. I was confused that status is read
but not checked... In this case 'status' var can be removed.
Ivan
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