Re: [PATCH 0/5] Fix set but unused variable warnings

From: Julian Calaby
Date: Wed Jun 16 2010 - 07:30:51 EST


On Wed, Jun 16, 2010 at 21:09, Matthew Wilcox <matthew@xxxxxx> wrote:
> On Wed, Jun 16, 2010 at 03:52:58PM +1000, Julian Calaby wrote:
>> Given that patches 3, 4 and 5 seem to be a cases of missing error
>> handling, (3 and 4 in particular seem to be breaking things rather
>> than fixing them) in my humble opinion, I think this set needs some
>> work and discussion.
>>
>> Justin, maybe you'd be better off posting the actual error messages
>> (split up by subsystem) and letting the lists discuss them, rather
>> than posting patches which are obviously wrong. (like the ones I've
>> pointed out)
>
> My first impression of patch 5 was "that can't be right", but upon review,
> I concluded that was the best solution.  If we return the PTR_ERR, this
> is going to confuse every user of scsi_host_alloc who are currently only
> checking for NULL.

I did a double take at patch 4 when skimming over them, then took a
proper look at the lot of them. Whilst I agree that 5 isn't doing
anything particularly bad, it does seem wrong, especially in the
context of 3 and 4.

Thanks,

--

Julian Calaby

Email: julian.calaby@xxxxxxxxx
.Plan: http://sites.google.com/site/juliancalaby/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/