rem: static void __card_mountcallback(u32 chn,s32 result)
add: static void __card_mountcallback(s32 chn,s32 result)
context: static void __card_mountcallback(u32 chn,s32 result){	s32 ret;	cardcallback cb;	card_block *card = &cardmap[chn];		ret = result;	if(ret==CARD_ERROR_NOCARD || ret==CARD_ERROR_IOERROR) {		__card_dounmount(chn,ret);		__card_putcntrlblock(card,ret);	}else if(ret==CARD_ERROR_UNLOCKED) {		if((ret=__card_domount(chn))>=0) return;	} else {		if((++card->mount_step)<7) {			if((ret=__card_domount(chn))>=0) return;		} else {			ret = __card_verify(card);			__card_putcntrlblock(card,ret);		}	}		cb = card->card_api_cb;	card->card_api_cb = NULL;	if(cb) cb(chn,ret);}