Re: [RFC][PATCH v2 20/31] timers: usb: Use del_timer_shutdown() before freeing timer

[Steven Rostedt]

On Thu, 27 Oct 2022 16:38:19 -0400
Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, Oct 27, 2022 at 11:05:45AM -0400, Steven Rostedt wrote:
> > From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
> > 
> > Before a timer is freed, del_timer_shutdown() must be called.  
> 
> Is this supposed to be true for all timers?  Because the USB subsystem 
> contains an awful lot more timers than just the two you touched in this 
> patch.

Yes, and this does mean that we are going to have to painstakingly find and
fix ever one of them. This is why the last patch updates
DEBUG_OBJECTS_TIMERS to detect cases where I miss.

-- Steve