From 1485e2fb627b3507f1caca0a28cd75293d192b1f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Mon, 10 Sep 2018 11:36:44 +0200 Subject: [PATCH] staging/vboxvideo: Replace ttm_bo_unref with ttm_bo_put The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vboxvideo/vbox_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c index 429f6a4..b6cff31 100644 --- a/drivers/staging/vboxvideo/vbox_main.c +++ b/drivers/staging/vboxvideo/vbox_main.c @@ -490,9 +490,8 @@ static void vbox_bo_unref(struct vbox_bo **bo) return; tbo = &((*bo)->bo); - ttm_bo_unref(&tbo); - if (!tbo) - *bo = NULL; + ttm_bo_put(tbo); + *bo = NULL; } void vbox_gem_free_object(struct drm_gem_object *obj) -- 2.7.4