linux-kernel - Re: [PATCH] drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set

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>] [day] [month] [year] [list]

Message-ID: <241aaf11-d4a0-e5a9-9744-75839006c128@web.de>
Date:   Sun, 14 Jun 2020 15:05:46 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Navid Emamdoost <navid.emamdoost@...il.com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Cc:     Navid Emamdoost <emamd001@....edu>, Kangjie Lu <kjlu@....edu>,
        Stephen McCamant <smccaman@....edu>,
        Qiushi Wu <wu000273@....edu>, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>,
        Andrey Grodzovsky <andrey.grodzovsky@....com>,
        Christian König <christian.koenig@....com>,
        Shirish S <shirish.s@....com>, Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>, Lyude Paul <lyude@...hat.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Yu Kuai <yukuai3@...wei.com>
Subject: Re: [PATCH] drm/amdgpu: fix ref count leak in
 amdgpu_display_crtc_set_config

> in amdgpu_display_crtc_set_config, …

* Can the term “reference count” become relevant also for this commit message
  besides other possible adjustments?

* Can it be nicer to combine proposed updates for this software module
  as a patch series (with a cover letter)?

* Would you like to add the tag “Fixes”?


…
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
…
> @@ -306,6 +306,7 @@  int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
>  		adev->have_disp_power_ref = false;
>  	}
>
> +out:
>  	/* drop the power reference we got coming in here */
>  	pm_runtime_put_autosuspend(dev->dev);
>  	return ret;

Perhaps use the label “put_runtime” instead?

Regards,
Markus