Re: [PATCH v7 03/10] ACPI: property: Parse _CRS CSI-2 descriptor

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On Tue, Mar 28, 2023 at 06:27:09PM +0300, Sakari Ailus wrote:
> On Tue, Mar 28, 2023 at 06:12:09PM +0300, Andy Shevchenko wrote:
> > On Tue, Mar 28, 2023 at 01:12:56PM +0300, Sakari Ailus wrote:

...

> > > +	struct scan_check_crs_csi2_context inst_context = {
> > > +		.handle = handle,
> > > +		.res_head = LIST_HEAD_INIT(inst_context.res_head),
> > > +	};
> > > +	struct crs_csi2 *csi2;
> > > +
> > > +	acpi_walk_resources(handle, METHOD_NAME__CRS,
> > > +			    scan_check_crs_csi2_instance, &inst_context);
> > > +
> > > +	if (list_empty(&inst_context.res_head))
> > > +		return;
> > > +
> > > +	/*
> > > +	 * Found entry, so allocate memory for it, fill it and add it to the
> > > +	 * list.
> > > +	 */
> > > +	csi2 = kmalloc(sizeof(*csi2), GFP_KERNEL);
> > > +	if (!csi2)
> > 
> > Who is going to release resources allocated in the callback above?
> 
> This is done by crs_csi2_release(), called from acpi_bus_scan_crs_csi2().

Isn't it a bit counter intuitive?

> > > +		return; /* There's nothing we really can do about this. */


-- 
With Best Regards,
Andy Shevchenko





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