[v3] usb/hcd: Send a uevent signaling that the host controller had died

[Raul E Rangel <rrangel@chromium.org>]

On Wed, Apr 17, 2019 at 03:14:14PM -0400, Alan Stern wrote:
> On Wed, 17 Apr 2019, Raul E Rangel wrote:
> 
> > +/* Workqueue routine for when the root-hub has died. */
> > +static void hcd_died_work(struct work_struct *work)
> > +{
> > +	struct usb_hcd *hcd = container_of(work, struct usb_hcd, died_work);
> > +	char *env[] = {
> > +		"ERROR=DEAD",
> > +		NULL
> > +	};
> 
> This can now be
> 
> 	static const char *env[] = ...
> 
> right?  There's no need for the array to be reinitialized every time 
> the routine runs.
I originally tried to make it const, but kobject_uevent_env doesn't
declare the parameter as const, so the compiler yelled at me. I could
make it static, but a static without a const makes me wary. I can add it
if you think it's fine.
> 
> Alan Stern
>