On 13/02/17 10:45, Felipe Balbi wrote:
>
> Hi,
>
> Colin King <colin.king@xxxxxxxxxxxxx> writes:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> The check for retval being less than zero is always true since
>> retval equal to -EPIPE at that point. Replace the existing
>> conditional with just return retval.
>>
>> Detected with CoverityScan, CID#114349 ("Logically dead code")
>>
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>> ---
>> drivers/usb/misc/usbtest.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
>> index 3525626..17c0810 100644
>> --- a/drivers/usb/misc/usbtest.c
>> +++ b/drivers/usb/misc/usbtest.c
>> @@ -992,7 +992,7 @@ static int ch9_postconfig(struct usbtest_dev *dev)
>> dev_err(&iface->dev,
>> "hs dev qualifier --> %d\n",
>> retval);
>> - return (retval < 0) ? retval : -EDOM;
>> + return retval;
>
> you're changing return value here, are you sure there's nothing else
> depending on this error?
>
The code in the current state will never return -EDOM and will always
return retval, so this change actually makes no functional change, it
just removes a redundant check. So it's not going to make a jot of
difference to the current behaver.
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