On Thu, Jun 19, 2014 at 09:15:36PM +0200, Daniel Vetter wrote:
> On Thu, Jun 19, 2014 at 7:00 PM, Greg KH <gre...@linuxfoundation.org> wrote:
> >> >> +     BUG_ON(f1->context != f2->context);
> >> >
> >> > Nice, you just crashed the kernel, making it impossible to debug or
> >> > recover :(
> >>
> >> agreed, that should probably be 'if (WARN_ON(...)) return NULL;'
> >>
> >> (but at least I wouldn't expect to hit that under console_lock so you
> >> should at least see the last N lines of the backtrace on the screen
> >> ;-))
> >
> > Lots of devices don't have console screens :)
> 
> Aside: This is a pet peeve of mine and recently I've switched to
> rejecting all patch that have a BUG_ON, period.

Please do, I have been for a few years now as well for the same reasons
you cite.

greg k-h
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