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kms/connector: Keep a ref to the KmsImplDevice instead of KmsDevice

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The KmsImplDevice always exists as long as a KmsConnector exists. The
KmsDevice doesn't exist yet as long as the KmsImplDevice is not fully
initiallized. Going through the KmsImplDevice makes sure we always have
a valid reference and can release the device fd correctly when the
initialization fails.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3243
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3518>
This commit is contained in:
Sebastian Wick 2024-01-11 16:37:33 +01:00 committed by Marge Bot
parent 7b232d9f65
commit 399ffdfc88
1 changed files with 9 additions and 21 deletions
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26
src/backends/native/meta-kms-connector.c
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@ -62,7 +62,7 @@ struct _MetaKmsConnector
{ {
GObject parent; GObject parent;
MetaKmsDevice *device; MetaKmsImplDevice *impl_device;
uint32_t id; uint32_t id;
uint32_t type; uint32_t type;
@ -93,7 +93,7 @@ typedef enum _MetaKmsPrivacyScreenHwState
MetaKmsDevice * MetaKmsDevice *
meta_kms_connector_get_device (MetaKmsConnector *connector) meta_kms_connector_get_device (MetaKmsConnector *connector)
{ {
return connector->device; return meta_kms_impl_device_get_device (connector->impl_device);
} }
uint32_t uint32_t
@ -1122,15 +1122,10 @@ meta_kms_connector_update_state_in_impl (MetaKmsConnector *connector,
drmModeRes *drm_resources, drmModeRes *drm_resources,
drmModeConnector *drm_connector) drmModeConnector *drm_connector)
{ {
MetaKmsImplDevice *impl_device; return meta_kms_connector_read_state (connector,
MetaKmsResourceChanges changes; connector->impl_device,
impl_device = meta_kms_device_get_impl_device (connector->device);
changes = meta_kms_connector_read_state (connector, impl_device,
drm_connector, drm_connector,
drm_resources); drm_resources);
return changes;
} }
void void
@ -1149,7 +1144,6 @@ MetaKmsResourceChanges
meta_kms_connector_predict_state_in_impl (MetaKmsConnector *connector, meta_kms_connector_predict_state_in_impl (MetaKmsConnector *connector,
MetaKmsUpdate *update) MetaKmsUpdate *update)
{ {
MetaKmsImplDevice *impl_device;
MetaKmsConnectorState *current_state; MetaKmsConnectorState *current_state;
GList *mode_sets; GList *mode_sets;
GList *l; GList *l;
@ -1232,8 +1226,7 @@ meta_kms_connector_predict_state_in_impl (MetaKmsConnector *connector,
} }
} }
impl_device = meta_kms_device_get_impl_device (connector->device); sync_fd_held (connector, connector->impl_device);
sync_fd_held (connector, impl_device);
return changes; return changes;
} }
@ -1582,7 +1575,7 @@ meta_kms_connector_new (MetaKmsImplDevice *impl_device,
g_assert (drm_connector); g_assert (drm_connector);
connector = g_object_new (META_TYPE_KMS_CONNECTOR, NULL); connector = g_object_new (META_TYPE_KMS_CONNECTOR, NULL);
connector->device = meta_kms_impl_device_get_device (impl_device); connector->impl_device = impl_device;
connector->id = drm_connector->connector_id; connector->id = drm_connector->connector_id;
connector->type = drm_connector->connector_type; connector->type = drm_connector->connector_type;
connector->type_id = drm_connector->connector_type_id; connector->type_id = drm_connector->connector_type_id;
@ -1603,12 +1596,7 @@ meta_kms_connector_finalize (GObject *object)
MetaKmsConnector *connector = META_KMS_CONNECTOR (object); MetaKmsConnector *connector = META_KMS_CONNECTOR (object);
if (connector->fd_held) if (connector->fd_held)
{ meta_kms_impl_device_unhold_fd (connector->impl_device);
MetaKmsImplDevice *impl_device;
impl_device = meta_kms_device_get_impl_device (connector->device);
meta_kms_impl_device_unhold_fd (impl_device);
}
g_clear_pointer (&connector->current_state, meta_kms_connector_state_free); g_clear_pointer (&connector->current_state, meta_kms_connector_state_free);
g_free (connector->name); g_free (connector->name);