On Tue, Nov 05, 2019 at 02:46:19PM +0800, Pan Bian wrote: > The device md->input is used after it is released. Setting the device > data to NULL is unnecessary as the device is never used again. Instead, > md->input should be assigned NULL to avoid accessing the freed memory > accidently. No, we are tearing up the device anyway, I'd leave it as it was, so I'll drop this chunk and apply the rest. Thank you. -- Dmitry