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drm: Add reference counting on HDR metadata blob

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This adds reference count for HDR metadata blob,
handled as part of duplicate and destroy connector
state functions.

v2: Removed the hdr_metadata_changed initialization as
the variable is dropped and not required.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1558015817-12025-3-git-send-email-uma.shankar@intel.com
This commit is contained in:
Jonas Karlman 2019-05-16 19:40:07 +05:30 committed by Ville Syrjälä
parent fbb5d0353c
commit c0b0ebb171
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/drm_atomic_state_helper.c
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@ -391,6 +391,9 @@ __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
drm_connector_get(connector);
state->commit = NULL;
if (state->hdr_output_metadata)
drm_property_blob_get(state->hdr_output_metadata);
/* Don't copy over a writeback job, they are used only once */
state->writeback_job = NULL;
}
@ -438,6 +441,8 @@ __drm_atomic_helper_connector_destroy_state(struct drm_connector_state *state)
if (state->writeback_job)
drm_writeback_cleanup_job(state->writeback_job);
drm_property_blob_put(state->hdr_output_metadata);
}
EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state);