Re: [Patch net-next] net_sched: properly handle failure case of tcf_exts_init()

On 16-08-22 01:40 PM, Cong Wang wrote:

On Mon, Aug 22, 2016 at 5:11 AM, Jamal Hadi Salim [off-list ref] wrote:

quoted

Answered my own question by looking at implementation of kfree();
ignores NULL (unlike free())

Seriously?

Here is what C standard says about free():

I may be confusing it with fact that the kernel kfree() used to not
check for nullness or perhaps a _lot_ of people used to check for the
null pointer before calling kfree().
[At some point a massive patch must have gone in and cleaned that kind
of code up because i cant find evidence of what i am saying ;->]

cheers,
jamal