OpenCloudOS-Kernel/drivers/gpu/drm/hisilicon
Thomas Zimmermann c932c4f831 drm/hisilicon: 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 <tzimmermann@suse.de>
Reviewed-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
Signed-off-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
2018-09-26 11:42:12 +08:00
..
hibmc drm/hisilicon: Replace ttm_bo_unref with ttm_bo_put 2018-09-26 11:42:12 +08:00
kirin drm/hisilicon: Replace drm_dev_unref with drm_dev_put 2018-09-26 11:42:03 +08:00
Kconfig drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver 2016-11-17 15:26:24 +08:00
Makefile drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver 2016-11-17 15:26:24 +08:00