Re: [PATCH] clk: core: Copy connection id

[Leonard Crestez]

On Fri, 2017-02-24 at 12:44 -0800, Stephen Boyd wrote:
> On 02/20, Leonard Crestez wrote:
> > Some drivers use sprintf to build clk connection id names but the
> > clk
> > core will save those strings and occasionally print them back.
> > Duplicate
> > the con_id strings instead of fixing all the users.
> 
> Good catch. What about dev_id though? That could also have the
> same problem if some device is removed and we're still holding a
> reference to the kobject's name. This is probably more rare than
> what is happening here, but still seems possible that we might
> trip over that later.

A device should normally free the clks it uses before it is destroyed.
This means that if dev_id is pointing to freed memory then the clk
itself was probably leaked, right?

This is obvious misuse of the API, not like sprintf-ing a con_id in a
complex driver. I don't really think it's worth copying strings for it.

--
Regards,
Leonard