On Fri, Feb 19, 2021 at 12:14:58PM +0100, Arnaud Pouliquen wrote:
> Introduce the __rpmsg_chrdev_create_eptdev internal function that returns
> the rpmsg_eptdev context structure.

Add newlines between paragraphs.

> This patch prepares the introduction of a RPMsg device for the
> char device. the RPMsg device will need a reference to the context.

s/the/The

s/RPMsg/RPMSG - throughout the patchset.

As a general note please be mindful of patch changelogs.  I often find myself
having to decipher the ideas being conveyed.

I am done reviewing this set.  There are things I will want to come back to but
the general goals behind the patchset are being achieved.

Thanks,
Mathieu

> 
> Signed-off-by: Arnaud Pouliquen <arnaud.pouliq...@foss.st.com>
> ---
>  drivers/rpmsg/rpmsg_char.c | 23 ++++++++++++++++++-----
>  1 file changed, 18 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
> index 09ae1304837c..66dcb8845d6c 100644
> --- a/drivers/rpmsg/rpmsg_char.c
> +++ b/drivers/rpmsg/rpmsg_char.c
> @@ -328,8 +328,9 @@ int rpmsg_chrdev_eptdev_destroy(struct device *dev, void 
> *data)
>  }
>  EXPORT_SYMBOL(rpmsg_chrdev_eptdev_destroy);
>  
> -int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device 
> *parent,
> -                            struct rpmsg_channel_info chinfo)
> +static struct rpmsg_eptdev *__rpmsg_chrdev_create_eptdev(struct rpmsg_device 
> *rpdev,
> +                                                      struct device *parent,
> +                                                      struct 
> rpmsg_channel_info chinfo)
>  {
>       struct rpmsg_eptdev *eptdev;
>       struct device *dev;
> @@ -337,7 +338,7 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device 
> *rpdev, struct device *parent
>  
>       eptdev = kzalloc(sizeof(*eptdev), GFP_KERNEL);
>       if (!eptdev)
> -             return -ENOMEM;
> +             return ERR_PTR(-ENOMEM);
>  
>       dev = &eptdev->dev;
>       eptdev->rpdev = rpdev;
> @@ -381,7 +382,7 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device 
> *rpdev, struct device *parent
>               put_device(dev);
>       }
>  
> -     return ret;
> +     return eptdev;
>  
>  free_ept_ida:
>       ida_simple_remove(&rpmsg_ept_ida, dev->id);
> @@ -391,7 +392,19 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device 
> *rpdev, struct device *parent
>       put_device(dev);
>       kfree(eptdev);
>  
> -     return ret;
> +     return ERR_PTR(ret);
> +}
> +
> +int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device 
> *parent,
> +                            struct rpmsg_channel_info chinfo)
> +{
> +     struct rpmsg_eptdev *eptdev;
> +
> +     eptdev = __rpmsg_chrdev_create_eptdev(rpdev, &rpdev->dev, chinfo);
> +     if (IS_ERR(eptdev))
> +             return PTR_ERR(eptdev);
> +
> +     return 0;
>  }
>  EXPORT_SYMBOL(rpmsg_chrdev_create_eptdev);
>  
> -- 
> 2.17.1
> 

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