drm/gem: add _locked suffix to drm_gem_object_put

Vast majority of DRM (core and drivers) are struct_mutex free.

As such we have only a handful of cases where the locked helper should
be used. Make that stand out a little bit better.

Done via the following script:

__from=drm_gem_object_put
__to=drm_gem_object_put_locked

for __file in $(git grep --name-only --word-regexp $__from); do
sed -i "s/\<$__from\>/$__to/g" $__file;
done

Cc: Rob Clark <[e-mail]>
Cc: Sean Paul <[e-mail]>
Cc: [e-mail]
Signed-off-by: Emil Velikov <[e-mail]>
Acked-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Steven Price <[e-mail]>
Acked-by: Thomas Zimmermann <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/drm_gem.c

···
 EXPORT_SYMBOL(drm_gem_object_free);
 
 /**
- * drm_gem_object_put - release a GEM buffer object reference
+ * drm_gem_object_put_locked - release a GEM buffer object reference
  * @obj: GEM buffer object
  *
  * This releases a reference to @obj. Callers must hold the
···
  * drm_gem_object_put_unlocked() instead.
  */
 void
-drm_gem_object_put(struct drm_gem_object *obj)
+drm_gem_object_put_locked(struct drm_gem_object *obj)
 {
 	if (obj) {
 		WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
···
 		kref_put(&obj->refcount, drm_gem_object_free);
 	}
 }
-EXPORT_SYMBOL(drm_gem_object_put);
+EXPORT_SYMBOL(drm_gem_object_put_locked);
 
 /**
  * drm_gem_vm_open - vma->ops->open implementation for GEM

drivers/gpu/drm/msm/adreno/a5xx_debugfs.c

···
 
 	if (a5xx_gpu->pm4_bo) {
 		msm_gem_unpin_iova(a5xx_gpu->pm4_bo, gpu->aspace);
-		drm_gem_object_put(a5xx_gpu->pm4_bo);
+		drm_gem_object_put_locked(a5xx_gpu->pm4_bo);
 		a5xx_gpu->pm4_bo = NULL;
 	}
 
 	if (a5xx_gpu->pfp_bo) {
 		msm_gem_unpin_iova(a5xx_gpu->pfp_bo, gpu->aspace);
-		drm_gem_object_put(a5xx_gpu->pfp_bo);
+		drm_gem_object_put_locked(a5xx_gpu->pfp_bo);
 		a5xx_gpu->pfp_bo = NULL;
 	}
 

drivers/gpu/drm/msm/msm_drv.c

···
 		ret = 0;
 	}
 
-	drm_gem_object_put(obj);
+	drm_gem_object_put_locked(obj);
 
 unlock:
 	mutex_unlock(&dev->struct_mutex);

drivers/gpu/drm/msm/msm_gem.c

···
 }
 #endif
 
-/* don't call directly!  Use drm_gem_object_put() and friends */
+/* don't call directly!  Use drm_gem_object_put_locked() and friends */
 void msm_gem_free_object(struct drm_gem_object *obj)
 {
 	struct msm_gem_object *msm_obj = to_msm_bo(obj);
···
 	return vaddr;
 err:
 	if (locked)
-		drm_gem_object_put(obj);
+		drm_gem_object_put_locked(obj);
 	else
 		drm_gem_object_put_unlocked(obj);
 
···
 	msm_gem_unpin_iova(bo, aspace);
 
 	if (locked)
-		drm_gem_object_put(bo);
+		drm_gem_object_put_locked(bo);
 	else
 		drm_gem_object_put_unlocked(bo);
 }

drivers/gpu/drm/msm/msm_gem_submit.c

···
 		struct msm_gem_object *msm_obj = submit->bos[i].obj;
 		submit_unlock_unpin_bo(submit, i, false);
 		list_del_init(&msm_obj->submit_entry);
-		drm_gem_object_put(&msm_obj->base);
+		drm_gem_object_put_locked(&msm_obj->base);
 	}
 }
 

drivers/gpu/drm/msm/msm_gpu.c

···
 		/* move to inactive: */
 		msm_gem_move_to_inactive(&msm_obj->base);
 		msm_gem_unpin_iova(&msm_obj->base, submit->aspace);
-		drm_gem_object_put(&msm_obj->base);
+		drm_gem_object_put_locked(&msm_obj->base);
 	}
 
 	pm_runtime_mark_last_busy(&gpu->pdev->dev);

include/drm/drm_gem.h

···
 	 *
 	 * Reference count of this object
 	 *
-	 * Please use drm_gem_object_get() to acquire and drm_gem_object_put()
+	 * Please use drm_gem_object_get() to acquire and drm_gem_object_put_locked()
 	 * or drm_gem_object_put_unlocked() to release a reference to a GEM
 	 * buffer object.
 	 */
···
 	kref_put(&obj->refcount, drm_gem_object_free);
 }
 
-void drm_gem_object_put(struct drm_gem_object *obj);
+void drm_gem_object_put_locked(struct drm_gem_object *obj);
 
 int drm_gem_handle_create(struct drm_file *file_priv,
 			  struct drm_gem_object *obj,