linux-kernel - Re: [PATCH 4/4] HID: uclogic: name the input nodes based on their tool

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Date:	Wed, 25 Feb 2015 23:04:58 +0200
From:	Nikolai Kondrashov <spbnick@...il.com>
To:	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Jiri Kosina <jkosina@...e.cz>
CC:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	DIGImend-devel <DIGImend-devel@...ts.sourceforge.net>
Subject: Re: [PATCH 4/4] HID: uclogic: name the input nodes based on their
 tool

On 02/25/2015 02:05 AM, Benjamin Tissoires wrote:
> We append "Pen", "Pad", "Mouse" or "Keyboard" suffix to the appropriate
> input node to match what the Wacom driver does and be more convenient for
> the user to know which one is which.

As I said before, this is a very welcome change. Thanks, Benjamin!
However, I'm not familiar with input_configured hook yet, so cannot give my
Reviewed-by.

> +	if (suffix) {
> +		len = strlen(hdev->name) + 2 + strlen(suffix);
> +		name = devm_kzalloc(&hi->input->dev, len, GFP_KERNEL);
> +		if (name) {
> +			snprintf(name, len, "%s %s", hdev->name, suffix);
> +			hi->input->name = name;
> +		}

I only feel a bit uneasy about duplicating buffer size knowledge here, as I
said before, but the code is short, so it'll probably be OK.

Nick
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