Patch "drm/imx/ipuv3: do not return negative values from .get_modes()" has been added to the 5.4-stable tree

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

    drm/imx/ipuv3: do not return negative values from .get_modes()

to the 5.4-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-imx-ipuv3-do-not-return-negative-values-from-.ge.patch
and it can be found in the queue-5.4 subdirectory.

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



commit a75274a4104014cccb27d98fbc0d99770ed5b5aa
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date:   Fri Mar 8 18:03:43 2024 +0200

    drm/imx/ipuv3: do not return negative values from .get_modes()
    
    [ Upstream commit c2da9ada64962fcd2e6395ed9987b9874ea032d3 ]
    
    The .get_modes() hooks aren't supposed to return negative error
    codes. Return 0 for no modes, whatever the reason.
    
    Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
    Cc: stable@xxxxxxxxxxxxxxx
    Acked-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
    Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/311f6eec96d47949b16a670529f4d89fcd97aefa.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/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index e24272428744c..2165ad545a382 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -63,14 +63,14 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
 		int ret;
 
 		if (!mode)
-			return -EINVAL;
+			return 0;
 
 		ret = of_get_drm_display_mode(np, &imxpd->mode,
 					      &imxpd->bus_flags,
 					      OF_USE_NATIVE_MODE);
 		if (ret) {
 			drm_mode_destroy(connector->dev, mode);
-			return ret;
+			return 0;
 		}
 
 		drm_mode_copy(mode, &imxpd->mode);




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