linux-kernel - Re: [PATCH v7 5/7] nvmem: core: Rework layouts to become platform devices

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Message-ID: <3a4aa779-f8b8-4178-8d65-b6aae9183fb7@kadam.mountain>
Date:   Fri, 4 Aug 2023 19:05:20 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     oe-kbuild@...ts.linux.dev,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        lkp@...el.com, oe-kbuild-all@...ts.linux.dev,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Robert Marko <robert.marko@...tura.hr>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Michael Walle <michael@...le.cc>, linux-kernel@...r.kernel.org,
        Randy Dunlap <rdunlap@...radead.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Daniel Golle <daniel@...rotopia.org>,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH v7 5/7] nvmem: core: Rework layouts to become platform
 devices

On Fri, Aug 04, 2023 at 05:46:25PM +0200, Miquel Raynal wrote:
> Actually of_nvmem_layout_get_container() already returns NULL if
> CONFIG_OF is not defined. This helper returns either a valid pointer of
> NULL. Where can it return an error pointer?

This is from linux-next.

include/linux/nvmem-consumer.h
   256  static inline struct device_node *
   257  of_nvmem_layout_get_container(struct nvmem_device *nvmem)
   258  {
   259          return ERR_PTR(-EOPNOTSUPP);
   260  }
   261  #endif /* CONFIG_NVMEM && CONFIG_OF */

regards,
dan carpenter