Re: [PATCH 0/7] isdn4linux: add drivers for Siemens Gigaset ISDN DECT PABX

[Karsten Keil <kkeil@suse.de>]

On Fri, Mar 03, 2006 at 07:53:28AM +0100, Arjan van de Ven wrote:
> On Fri, 2006-03-03 at 00:03 +0100, Tilman Schmidt wrote:
...
> 
> > >>+#define IFNULL(a) \
> > >>+       if (unlikely(!(a)))
> > > 
> > > please please get rid of this!
> > > (same goes for the variants of this just below this)
> > 
> > Ok, these were mainly debugging aids. We'll just drop them and let the
> > oops mechanism catch the (hopefully non-existent) remaining cases of
> > pointers being unexpectedly NULL.
> 
> you can also use WARN_ON() and BUG_ON() for that, you then get a more
> readable oops message (with filename and line information)
> 

Yes, but please only WARN_ON(), BUG_ON should be only used, if here is no
way to recover or if continue will cause major data corruption, I do not
think thats the case anywhere in the driver.

-- 
Karsten Keil
SuSE Labs
ISDN development
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