Re: [PATCH] driver-core: platform: Catch errors from calls to irq_get_irq_data

[Guenter Roeck]

On 09/14/2016 02:44 AM, Greg Kroah-Hartman wrote:
> On Wed, Sep 14, 2016 at 11:06:08AM +0200, Linus Walleij wrote:
> > On Wed, Sep 14, 2016 at 5:32 AM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> >
> > > irq_get_irq_data() can return NULL, which results in a nasty crash.
> > > Check its return value before passing it on to irqd_set_trigger_type().
> > >
> > > Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> >
> > Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> >
> > Should probably be tagged for stable.
>
> Why, are there any systems that are currently broken without this change
> right now?
I only see it in -next, and that is due to a patch there.

Guenter