Hello, On Mon, Jan 22, 2018 at 09:38:51PM +0800, Xiongwei Song wrote: > The function css_alloc never return NULL, it may return normal pointer or
It's a calling a controller implemented method. I'd much rather keep the extra protection. > error codes that made by ERR_PTR, so !css is always false, we need use > IS_ERR to check it, and if this is true, we should use ERR_CAST handle it. It's of the same type. Why would it need casting? Thanks. -- tejun
