Re: [PATCH] intel_th: core: fix null pointer dereference in intel_th_irq

[David Arcari]

Hi Markus,

On 9/27/25 10:54 AM, Markus Elfring wrote:
> …
> > +++ b/drivers/hwtracing/intel_th/core.c
> > @@ -715,7 +715,9 @@ intel_th_subdevice_alloc(struct intel_th *th,
> >   int intel_th_output_enable(struct intel_th *th, unsigned int otype)
> >   {
> >   	struct intel_th_device *thdev;
> > -	int src = 0, dst = 0;
> > +	int src = 0, dst = 0, ret = 0;
> > +
> > +	disable_irq(th->irq);
> …
> > -	return 0;
> > +	enable_irq(th->irq);
> > +	return ret;
> >   }
> …
>
> How do you think about to increase the application of scope-based resource management?
> https://elixir.bootlin.com/linux/v6.17-rc7/source/include/linux/interrupt.h#L239-L240

At this point, I think that Alex is the best person to handle the 
resolution of this issue.

Best,
-DA

> Regards,
> Markus