linux-kernel - Re: [PATCH][next] drivers: video: Simplify device_node cleanup using _

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Date: Sat, 20 Apr 2024 00:22:41 +0530 (GMT+05:30)
From: Shresth Prasad <shresthprasad7@...il.com>
To: daniel.thompson@...aro.org
Cc: deller@....de, dri-devel@...ts.freedesktop.org,
	javier.carrasco.cruz@...il.com, jingoohan1@...il.com,
	julia.lawall@...ia.fr, lee@...nel.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, shresthprasad7@...il.com,
	skhan@...uxfoundation.org
Subject: Re: [PATCH][next] drivers: video: Simplify device_node cleanup
 using __free


> Please fix the subject line to be "backlight: <driver>: ...". I came
> very close to deleting this patch without reading it ;-) .

Really sorry about that, I'll fix it.

> Do we need to get dev->of_node at all? The device, which we are
> borrowing, already owns a reference to the node so I don't see
> any point in this function taking an extra one.
>
> So why not simply make this:
>
>     struct device_node *np = dev->of_node;

Looking at it again, I'm not sure why the call to `of_node_put` is there in the first place. I think removing it will be fine.

I'll fix both of these issues and send a patch v2.

Regards,
Shresth