drm/amd/display: Fix NULL ptr deref for commit_planes_to_stream
[Why] With scaling, underscan and abm changes we can end up calling commit_planes_to_stream in commit_tail. This call uses dm_state->context which can be NULL if the commit was a fast update. [How] Use dc_state instead since that can't be NULL unless the system ran out of memory. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108912 Fixes: e64abff2f133 ("drm/amd/display: Use private obj helpers for dm_atomic_state") Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -5009,7 +5009,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
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status->plane_count,
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dm_new_crtc_state,
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to_dm_crtc_state(old_crtc_state),
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dm_state->context))
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dc_state))
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dm_error("%s: Failed to update stream scaling!\n", __func__);
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}
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