From 15b1d171d87e86366266255462e6b11d21b61c1c Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Wed, 12 Jun 2013 17:27:27 -0300 Subject: drm/i915: fix the "ghost eDP" encoder unwind path Because calling intel_dp_encoder_destroy inside intel_edp_init_connector is just wrong. This is the initialization path, so we should properly unwind all the initialization through the whole caller stack. On the intel_dp_encoder_destroy function we do the following: 1 - Call i2c_del_adapter 2 - Call drm_encoder_cleanup 3 - If edp: 3.1 - Cancel panel_vdd_work 3.2 - Call ironlake_panel_vdd_of_sync 4 - Free the encoder And here is how we unwind each specific step: 1 - We have intel_dp_init_connector -> intel_dp_i2c_init -> i2c_dp_aux_add_bus -> i2c_add_adapter, so we call i2c_del_dapter at intel_dp_init_connector 2 - Call it in the same function that called drm_encoder_init 3 - Call it in the same function that called INIT_DELAYED_WORK 4 - Free it in the same function that allocated it Signed-off-by: Paulo Zanoni Reviewed-by: Zoltan Nyul Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ddi.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_ddi.c') diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index aed363cabe07..324211ac9c55 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1357,6 +1357,8 @@ void intel_ddi_init(struct drm_device *dev, enum port port) intel_encoder->hot_plug = intel_ddi_hot_plug; if (!intel_dp_init_connector(intel_dig_port, dp_connector)) { + drm_encoder_cleanup(encoder); + kfree(intel_dig_port); kfree(dp_connector); return; } -- cgit v1.2.3