Patch "drm/exynos: do not return negative values from .get_modes()" has been added to the 6.1-stable tree

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

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

to the 6.1-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-exynos-do-not-return-negative-values-from-.get_m.patch
and it can be found in the queue-6.1 subdirectory.

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



commit 33e3c145b39f77ae8421de01344f55db2c7e1d04
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date:   Fri Mar 8 18:03:41 2024 +0200

    drm/exynos: do not return negative values from .get_modes()
    
    [ Upstream commit 13d5b040363c7ec0ac29c2de9cf661a24a8aa531 ]
    
    The .get_modes() hooks aren't supposed to return negative error
    codes. Return 0 for no modes, whatever the reason.
    
    Cc: Inki Dae <inki.dae@xxxxxxxxxxx>
    Cc: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
    Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
    Cc: stable@xxxxxxxxxxxxxxx
    Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/d8665f620d9c252aa7d5a4811ff6b16e773903a2.1709913674.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/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index f5e1adfcaa514..fb941a8c99f0f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -316,14 +316,14 @@ static int vidi_get_modes(struct drm_connector *connector)
 	 */
 	if (!ctx->raw_edid) {
 		DRM_DEV_DEBUG_KMS(ctx->dev, "raw_edid is null.\n");
-		return -EFAULT;
+		return 0;
 	}
 
 	edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
 	edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
 	if (!edid) {
 		DRM_DEV_DEBUG_KMS(ctx->dev, "failed to allocate edid\n");
-		return -ENOMEM;
+		return 0;
 	}
 
 	drm_connector_update_edid_property(connector, edid);
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 1a7194a653ae5..be2d9cbaaef2e 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -887,11 +887,11 @@ static int hdmi_get_modes(struct drm_connector *connector)
 	int ret;
 
 	if (!hdata->ddc_adpt)
-		return -ENODEV;
+		return 0;
 
 	edid = drm_get_edid(connector, hdata->ddc_adpt);
 	if (!edid)
-		return -ENODEV;
+		return 0;
 
 	hdata->dvi_mode = !connector->display_info.is_hdmi;
 	DRM_DEV_DEBUG_KMS(hdata->dev, "%s : width[%d] x height[%d]\n",




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