linux-kernel - Re: [PATCH] drm/amd/display: Add error check for avi and vendor infoframe setup function

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

Message-ID: <CADnq5_MuOUbnxw3qNcUsvvAKVWL-Bx+_2n81bWPXgz4D5fuAeg@mail.gmail.com>
Date: Mon, 7 Apr 2025 09:16:16 -0400
From: Alex Deucher <alexdeucher@...il.com>
To: Wentao Liang <vulab@...as.ac.cn>
Cc: harry.wentland@....com, sunpeng.li@....com, Rodrigo.Siqueira@....com, 
	alexander.deucher@....com, christian.koenig@....com, Xinhui.Pan@....com, 
	airlied@...il.com, simona@...ll.ch, hamza.mahfooz@....com, 
	chiahsuan.chung@....com, sunil.khatri@....com, alex.hung@....com, 
	aurabindo.pillai@....com, hersenxs.wu@....com, mario.limonciello@....com, 
	mwen@...lia.com, amd-gfx@...ts.freedesktop.org, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amd/display: Add error check for avi and vendor
 infoframe setup function

On Mon, Apr 7, 2025 at 8:52 AM Wentao Liang <vulab@...as.ac.cn> wrote:
>
> The function fill_stream_properties_from_drm_display_mode() calls the
> function drm_hdmi_avi_infoframe_from_display_mode() and the
> function drm_hdmi_vendor_infoframe_from_display_mode(), but does
> not check its return value. Log the error messages to prevent silent
> failure if either function fails.

This description doesn't seem to match the code change below.

Alex

>
> Signed-off-by: Wentao Liang <vulab@...as.ac.cn>
> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 0396429a64be..d6feafb8fa3d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -6152,8 +6152,8 @@ static void fill_stream_properties_from_drm_display_mode(
>
>         if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
>                 err = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, (struct drm_connector *)connector, mode_in);
> -                if (err < 0)
> -                        dev_err(connector->dev, "Failed to setup avi infoframe: %zd\n", err);
> +               if (err < 0)
> +                       dev_err(connector->dev, "Failed to setup avi infoframe: %zd\n", err);
>                 timing_out->vic = avi_frame.video_code;
>                 err = drm_hdmi_vendor_infoframe_from_display_mode(&hv_frame, (struct drm_connector *)connector, mode_in);
>                 if (err < 0)
> --
> 2.42.0.windows.2
>