On Mon, Mar 14, 2022 at 04:13:59PM +0800, Greg KH wrote: >> The failure of allocation is not included in the tests. >> And as far as I know, there is not any tool that has the >> ability to fail the allocation. > > There are tools that do this. > Thanks, could you please tell me the tools? Jiang >> But I think that for safety, the cost of redundant and harmless >> check is acceptable. >> Also, checking after allocation is a good program pattern. > > That's fine, it's how you clean up that is the problem that not everyone > gets correct, which is why it is good to verify that you do not > introduce problems.