Patch "drm/vc4: hdmi: do not return negative values from .get_modes()" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/vc4: hdmi: do not return negative values from .get_modes()

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-vc4-hdmi-do-not-return-negative-values-from-.get.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit bfff5a02a2e1011505d8a04a8f9704d92bf3268e
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date:   Fri Mar 8 18:03:44 2024 +0200

    drm/vc4: hdmi: do not return negative values from .get_modes()
    
    [ Upstream commit abf493988e380f25242c1023275c68bd3579c9ce ]
    
    The .get_modes() hooks aren't supposed to return negative error
    codes. Return 0 for no modes, whatever the reason.
    
    Cc: Maxime Ripard <mripard@xxxxxxxxxx>
    Cc: stable@xxxxxxxxxxxxxxx
    Acked-by: Maxime Ripard <mripard@xxxxxxxxxx>
    Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/dcda6d4003e2c6192987916b35c7304732800e08.1709913674.git.jani.nikula@xxxxxxxxx
    Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 25c9c71256d35..4626fe9aac563 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -508,7 +508,7 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	edid = drm_get_edid(connector, vc4_hdmi->ddc);
 	cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
 	if (!edid)
-		return -ENODEV;
+		return 0;
 
 	drm_connector_update_edid_property(connector, edid);
 	ret = drm_add_edid_modes(connector, edid);




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