ia_css_rmgr_refcount_retain_vbuf
void ia_css_rmgr_refcount_retain_vbuf(struct ia_css_rmgr_vbuf_handle **handle);
ia_css_rmgr_refcount_retain_vbuf(handle);
ia_css_rmgr_refcount_retain_vbuf(&new_handle);
ia_css_rmgr_refcount_retain_vbuf(handle);