linux-kernel - Re: [RFC PATCH v3 1/3] drivers/accel: define kconfig and register a new major

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Date:   Mon, 7 Nov 2022 09:12:39 -0700
From:   Jeffrey Hugo <quic_jhugo@...cinc.com>
To:     Oded Gabbay <ogabbay@...nel.org>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        Jason Gunthorpe <jgg@...dia.com>,
        John Hubbard <jhubbard@...dia.com>,
        Alex Deucher <alexander.deucher@....com>
CC:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>,
        Jiho Chu <jiho.chu@...sung.com>,
        Daniel Stone <daniel@...ishbar.org>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        Christoph Hellwig <hch@...radead.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Jacek Lawrynowicz <jacek.lawrynowicz@...ux.intel.com>,
        Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>,
        Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [RFC PATCH v3 1/3] drivers/accel: define kconfig and register a
 new major

On 11/6/2022 2:02 PM, Oded Gabbay wrote:
> +int __init accel_core_init(void)
> +{
> +	int ret;
> +
> +	ret = accel_sysfs_init();
> +	if (ret < 0) {
> +		DRM_ERROR("Cannot create ACCEL class: %d\n", ret);
> +		goto error;
> +	}
> +
> +	accel_debugfs_root = debugfs_create_dir("accel", NULL);
> +
> +	ret = register_chrdev(ACCEL_MAJOR, "accel", &accel_stub_fops);
> +	if (ret < 0)
> +		goto error;

We are not jumping over anything here.  Seems like this whole if block 
could just be removed.

> +
> +error:
> +	/* Any cleanup will be done in drm_core_exit() that will call
> +	 * to accel_core_exit()
> +	 */

This doesn't look like the standard multi-line comment style.  Are we 
going to say that the accel subsystem follows net and differs from the 
kernel standard?

> +	return ret;
> +}