On 2022/11/30 18:04, Ulf Hansson wrote:
> On Wed, 30 Nov 2022 at 10:29, Zhen Lei <thunder.leizhen@xxxxxxxxxx> wrote:
>>
>> Fix to return a negative error code from the error handling
>> case instead of 0, as done elsewhere in this function.
>>
>> Fixes: c784f92769ae ("mmc: core: Read the SD function extension registers for power management")
>> Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
>> ---
>> drivers/mmc/core/sd.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
>> index 3662bf5320ce56d..7b64f76f0179ca8 100644
>> --- a/drivers/mmc/core/sd.c
>> +++ b/drivers/mmc/core/sd.c
>> @@ -1277,6 +1277,7 @@ static int sd_read_ext_regs(struct mmc_card *card)
>> if (rev != 0 || len > 512) {
>> pr_warn("%s: non-supported SD ext reg layout\n",
>> mmc_hostname(card->host));
>> + err = -EOPNOTSUPP;
>
> The original intent was to not return an error code. Simply, because
> the card remains functional and all but the new features from the SD
> function extensions registers can still be used.
OK, I got it.
>
> Perhaps, we should update the comment a few lines above to better
> reflect that this is in-fact what we intend here.
How about also add 'warning' to the output? The other two outputs
contain the 'error' keyword.
>
>> goto out;
>> }
>>
>
> Kind regards
> Uffe
> .
>
--
Regards,
Zhen Lei
