On Sat, Feb 27, 2016 at 9:15 AM, Jiang Qiu <qiuji...@huawei.com> wrote:
>>>>> - node = dev->of_node; >>>>> - if (!IS_ENABLED(CONFIG_OF_GPIO) || !node) >>>>> + if (!IS_ENABLED(CONFIG_OF_GPIO) || !(dev->of_node)) >>>>> return ERR_PTR(-ENODEV); >>>> >>>> So, since you converted to fwnode, do you still need this check? >>>> >>> Although this patch coverted device node to fwnode, only DTs binding was >>> supported here, and patch2 support ACPI will remove this check. >> >> Yes, but like I said below device_get_child_node_count() will take >> care of that, will it? > Right, device_get_child_node_count() will take of it, this should be removed. >> >>>>> >>>>> - nports = of_get_child_count(node); >>>>> + nports = device_get_child_node_count(dev); >>>>> if (nports == 0) >>>>> return ERR_PTR(-ENODEV); >>>> >>>> ...I think this one fail if it will not found any child. >>> This one fail? yes, it will return to failure. >>> I am not very clear here. >> >> See above. > Here, device_get_child_node_count will return ZERO if there is not any child. > So, I think this will work ok, will it? I didn't check deeply, but I assume so. -- With Best Regards, Andy Shevchenko
