Hi,
>> *host)
>>> if (!host->card || mmc_card_removed(host->card))
>>> return 1;
>>>
>>> - ret = host->bus_ops->alive(host);
>>> + if (host->ops->get_cd) {
>>> + ret = host->ops->get_cd(host);
>>> + if (ret >= 0)
>>> + ret = !ret;
>>> + }
>>> + if (ret < 0)
>>> + ret = host->bus_ops->alive(host);
>> why should we check for negative here? can move this code into else
>> path of if (host->ops->get_cd).
>>> if (ret) {
>
> I did this comment:
> If the card is present, 1 will return, if the card is absent, 0 will return.
> If the controller will not support this feature, -ENOSYS will return.
If checked whether card is absent or not with get_cd(), need to check the
host->bus_ops->alive?
>
> Can't move to other address, because these codes check the card present state.
>
>
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