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drm/i915: Flush power delayed put when connector init failed

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When intel_dp_init_connector fails, some power wells used in dp aux
communication may not be completely disabled yet. This may result in a
null pointer dereference when icl_aux_pw_to_phy() is called from
icl_combo_phy_aux_power_well_disable() after the encoder and connector
are already freed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221222201804.1380963-1-maarten.lankhorst@linux.intel.com
This commit is contained in:
Maarten Lankhorst
2022-12-22 21:18:04 +01:00
committed by Jani Nikula
parent c7b5abd3e0
commit f917130f19
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -5719,6 +5719,7 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
return true;
fail:
intel_display_power_flush_work(dev_priv);
drm_connector_cleanup(connector);
return false;