On Wed, Mar 16, 2022 at 12:23:05AM +0800, Xiaoke Wang wrote: > On Tue, 15 Mar 2022 16:27:38 +0100, Greg KH wrote: > > Your change just crashed the kernel :( > > > > Please be more careful > > I am sorry. I ever been told that vfree(NULL) or kfree(NULL) is safe, Sorry, you are right, I was thinking that there would be an error value there. My mistake. greg k-h