Re: [PATCH 0/3] gpiolib: generalize GPIO line names property

[Bartosz Golaszewski]

On Tue, Sep 15, 2020 at 2:02 PM Anders Roxell <anders.roxell@xxxxxxxxxx> wrote:
>
> On Tue, 8 Sep 2020 at 18:40, Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
> >
> > From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> >
> > I initially sent this as part of the gpio-mockup overhaul but since
> > these patches are indepentent and the work on gpio-mockup may become
> > more complicated - I'm sending these separately.
> >
> > The only change is adding additional property helpers to count strings
> > in array.
> >
> > Bartosz Golaszewski (3):
> >   device: property: add helpers to count items in string arrays
> >   gpiolib: generalize devprop_gpiochip_set_names() for device properties
> >   gpiolib: unexport devprop_gpiochip_set_names()
>
> I do an arm64 allmodconfig build fron linux-next (tag: next-20200915) and
> run that in qemu. When I run I see the following output (see full log [1]):
> "BUG: KASAN: null-ptr-deref in device_property_read_string_array".
>
>

FYI: this fails because someone passes a NULL struct device * to
dev_fwnode() - this is probably caused by some ordering issues in this
patch. I'm working on it.

Bartosz