diff options
| author | James Ausmus <james.ausmus@intel.com> | 2017-10-13 11:01:44 -0700 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-10-17 18:23:30 +0300 |
| commit | 091a4f91942a4396c67e5747f5cb38c6396d1fc5 (patch) | |
| tree | 4126a3cef66b1154c15741c1e8d2b2b89a0d256c /drivers/gpu/drm/i915/intel_dp_mst.c | |
| parent | 134649ff3545f3b7b862c589e9accb400ace2474 (diff) | |
drm/i915: Handle drm-layer errors in intel_dp_add_mst_connector
Make intel_dp_add_mst_connector handle error returns from the drm_ calls.
Add intel_connector_free to support cleanup on the error path.
v2: Rename new function to avoid confusion, and simplify error
paths (Ville)
v3: Indentation fixup, style fixes (Ville)
v4: Clarify usage of intel_connector_free, and fix usage of
intel_connector_free
v5: Rebase
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013180144.15865-1-james.ausmus@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp_mst.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c index f7c782576162..772521440a9f 100644 --- a/drivers/gpu/drm/i915/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/intel_dp_mst.c @@ -458,13 +458,20 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo struct intel_connector *intel_connector; struct drm_connector *connector; enum pipe pipe; + int ret; intel_connector = intel_connector_alloc(); if (!intel_connector) return NULL; connector = &intel_connector->base; - drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs, DRM_MODE_CONNECTOR_DisplayPort); + ret = drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort); + if (ret) { + intel_connector_free(intel_connector); + return NULL; + } + drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs); intel_connector->get_hw_state = intel_dp_mst_get_hw_state; @@ -472,15 +479,27 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo intel_connector->port = port; for_each_pipe(dev_priv, pipe) { - drm_mode_connector_attach_encoder(&intel_connector->base, - &intel_dp->mst_encoders[pipe]->base.base); + struct drm_encoder *enc = + &intel_dp->mst_encoders[pipe]->base.base; + + ret = drm_mode_connector_attach_encoder(&intel_connector->base, + enc); + if (ret) + goto err; } drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0); drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0); - drm_mode_connector_set_path_property(connector, pathprop); + ret = drm_mode_connector_set_path_property(connector, pathprop); + if (ret) + goto err; + return connector; + +err: + drm_connector_cleanup(connector); + return NULL; } static void intel_dp_register_mst_connector(struct drm_connector *connector) |