On Thu, Feb 28, 2013 at 2:51 AM, Joonyoung Shim <jy0922.shim@xxxxxxxxxxx> wrote: > My mistake. If CONFIG_PINCTRL is disabled, devm_pinctrl_get_select_default > can return NULL. Yes, and that is perfectly legal and *NOT* an error. > devm_pinctrl_get_select() and pinctrl_get_select() also need IS_ERR_OR_NULL > instead of IS_ERR? No. In fact, IS_ERR_OR_NULL() shall not be used at all. Check the LKML mailinglist for Russells recent struggle to purge it from the kernel. > And many drivers using above functions don't check NULL, right? No, and they should not. Stub pinctrl handles, just like stub clocks and stub regulators, are perfectly legal, just that they have no effect. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
