On Wed, Nov 01, 2023 at 09:35:44PM +0800, Ren Mingshuai wrote: > Generally, the old always points to the address of a ktermios structure, > so old is unlikely to be NULL. Still check it before dereference as > elsewhere. If it can not happen, there is no need to check it. So unless you can prove that this ever could happen, this change isn't needed, right? thanks, greg k-h
