linux-kernel - Re: [PATCH v2 4/5] accel/thames: Add IOCTL for job submission

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Message-ID: <b356d642-6cb9-4c64-a66e-26b6e6fcd19c@web.de>
Date: Wed, 14 Jan 2026 18:51:59 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Tomeu Vizoso <tomeu@...euvizoso.net>, dri-devel@...ts.freedesktop.org,
 linux-media@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linaro-mm-sig@...ts.linaro.org
Cc: LKML <linux-kernel@...r.kernel.org>, linux-doc@...r.kernel.org,
 Andrei Aldea <a-aldea@...com>, "Andrew F. Davis" <afd@...com>,
 Chirag Shilwant <c-shilwant@...com>,
 Christian König <christian.koenig@....com>,
 Conor Dooley <conor+dt@...nel.org>, David Airlie <airlied@...il.com>,
 Jonathan Corbet <corbet@....net>, Jonathan Humphreys <j-humphreys@...com>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Nishanth Menon <nm@...com>,
 Oded Gabbay <ogabbay@...nel.org>, Randolph Sapp <rs@...com>,
 Rob Herring <robh@...nel.org>, Robert Nelson <robertcnelson@...il.com>,
 Simona Vetter <simona@...ll.ch>, Sumit Semwal <sumit.semwal@...aro.org>,
 Tero Kristo <kristo@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH v2 4/5] accel/thames: Add IOCTL for job submission

…
> +++ b/drivers/accel/thames/thames_job.c
> @@ -0,0 +1,463 @@
…
> +static int thames_job_push(struct thames_job *job)
> +{
…
> +	dev_dbg(tdev->ddev.dev, "Pushing job with %u in BOs and %u out BOs\n", job->in_bo_count,
> +		job->out_bo_count);
> +	bos = kvmalloc_array(job->in_bo_count + job->out_bo_count, sizeof(void *), GFP_KERNEL);
> +	memcpy(bos, job->in_bos, job->in_bo_count * sizeof(void *));
…

Why was error detection for a memory allocation failure omitted (or overlooked)
so far at this source code place?

Regards,
Markus