Patch "drm/amd/display: Return error code on DSC atomic check failure" 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/amd/display: Return error code on DSC atomic check failure

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-amd-display-return-error-code-on-dsc-atomic-chec.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 587434609a3e9ad8f18072912260b7c29950719f
Author: Hersen Wu <hersenxs.wu@xxxxxxx>
Date:   Sun May 29 10:54:30 2022 -0400

    drm/amd/display: Return error code on DSC atomic check failure
    
    [ Upstream commit dd24662d9dfbad281bbf030f06d68c7938fa0c66 ]
    
    [Why&How]
    We were not returning -EINVAL on DSC atomic check fail. Add it.
    
    Fixes: 71be4b16d39a ("drm/amd/display: dsc validate fail not pass to atomic check")
    Reviewed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
    Signed-off-by: Hersen Wu <hersenxs.wu@xxxxxxx>
    Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

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 9f637e360755d..8584049158510 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9746,6 +9746,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 		ret = compute_mst_dsc_configs_for_state(state, dm_state->context, vars);
 		if (ret) {
 			DRM_DEBUG_DRIVER("compute_mst_dsc_configs_for_state() failed\n");
+			ret = -EINVAL;
 			goto fail;
 		}
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index df74bc88e4600..e2f9141d6d938 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1368,6 +1368,7 @@ int pre_validate_dsc(struct drm_atomic_state *state,
 	ret = pre_compute_mst_dsc_configs_for_state(state, local_dc_state, vars);
 	if (ret != 0) {
 		DRM_INFO_ONCE("pre_compute_mst_dsc_configs_for_state() failed\n");
+		ret = -EINVAL;
 		goto clean_exit;
 	}
 



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