linux-kernel - Re: [PATCH v3 8/9] drm/tegra: vic: Implement get_streamid

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 19 Feb 2022 21:49:11 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Mikko Perttunen <mperttunen@...dia.com>, thierry.reding@...il.com,
        jonathanh@...dia.com, joro@...tes.org, will@...nel.org,
        robh+dt@...nel.org, robin.murphy@....com
Cc:     linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 8/9] drm/tegra: vic: Implement get_streamid_offset

18.02.2022 14:39, Mikko Perttunen пишет:
> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
> +{
> +	struct vic *vic = to_vic(client);
> +	int err;
> +
> +	err = vic_load_firmware(vic);

You can't invoke vic_load_firmware() while RPM is suspended. Either
replace this with RPM get/put or do something else.

> +	if (err < 0)
> +		return err;
> +
> +	if (vic->can_use_context)
> +		return 0x30;
> +	else
> +		return -ENOTSUPP;

If (!vic->can_use_context)
	return -ENOTSUPP;

return 0x30;