lkml.org 
[lkml]   [2008]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] genhd must_check warning fix
Date
On Wednesday 12 March 2008 14:25, Jeff Garzik wrote:
> Roland McGrath wrote:
> > Fixes:
> >
> > block/genhd.c:361: warning: ignoring return value of ‘class_register’,
> > declared with attribute warn_unused_result
> >
> > Signed-off-by: Roland McGrath <roland@redhat.com>
> > ---
> > block/genhd.c | 4 +++-
> > 1 files changed, 3 insertions(+), 1 deletions(-)
> >
> > diff --git a/block/genhd.c b/block/genhd.c
> > index c44527d..00da521 100644
> > --- a/block/genhd.c
> > +++ b/block/genhd.c
> > @@ -360,7 +360,9 @@ static struct kobject *base_probe(dev_t devt, int
> > *part, void *data)
> >
> > static int __init genhd_device_init(void)
> > {
> > - class_register(&block_class);
> > + int error = class_register(&block_class);
> > + if (unlikely(error))
> > + return error;
> > bdev_map = kobj_map_init(base_probe, &block_class_lock);
> > blk_dev_init();
>
> ACK
>
> I was silly and simply tuned out this warning, assuming [wrongly] that
> it was difficult to fix like the fs/partitions.c warning.
>
> Shows how "helpful" those warnings are...

I don't see why? If the warning wasn't there, then Roland probably
wouldn't have noticed. So to me it shows that the warning actually
is helpful (without "") in this case.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2008-03-12 04:49    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site