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drm/display/dp_mst: Fix drm_dp_mst_add_affected_dsc_crtcs() return code
Looks like that we're accidentally dropping a pretty important return code
here. For some reason, we just return -EINVAL if we fail to get the MST
topology state. This is wrong: error codes are important and should never
be squashed without being handled, which here seems to have the potential
to cause a deadlock.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Fixes: 8ec046716c
("drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs")
Cc: <stable@vger.kernel.org> # v5.6+
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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1 changed files with 1 additions and 1 deletions
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@ -5186,7 +5186,7 @@ int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm
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mst_state = drm_atomic_get_mst_topology_state(state, mgr);
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if (IS_ERR(mst_state))
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return -EINVAL;
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return PTR_ERR(mst_state);
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list_for_each_entry(pos, &mst_state->payloads, next) {
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