[PATCH v2 02/20] drm/atomic: Drop drm_private_state.obj assignment from create_state

[Maxime Ripard]

The initial intent of the atomic_create_state helper was to simply
allocate a proper drm_private_state and returning it, without any side
effect.

However, the __drm_atomic_helper_private_obj_create_state() introduces a
side effect by setting the drm_private_obj.state to the newly allocated
state.

This assignment defeats the purpose, but is also redundant since
the only caller, drm_atomic_private_obj_init(), will also set this
pointer to the newly allocated state.

Let's drop the assignment in __drm_atomic_helper_private_obj_create_state().

Fixes: e7be39ed1716 ("drm/atomic-helper: Add private_obj atomic_create_state helper")
Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
---
 drivers/gpu/drm/drm_atomic_state_helper.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c
index 76746ad4a1bbb7142c067c93dd05fbec5d2f98eb..875149494b00e1eb7481e87d7d7038103b72b7e3 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -729,12 +729,10 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_destroy_state);
 void __drm_atomic_helper_private_obj_create_state(struct drm_private_obj *obj,
 						  struct drm_private_state *state)
 {
 	if (state)
 		state->obj = obj;
-
-	obj->state = state;
 }
 EXPORT_SYMBOL(__drm_atomic_helper_private_obj_create_state);
 
 /**
  * __drm_atomic_helper_private_obj_duplicate_state - copy atomic private state

-- 
2.53.0