On Thu, Oct 27, 2016 at 08:38:03AM -0700, Bart Van Assche wrote:
> On 10/27/2016 02:46 AM, Johannes Thumshirn wrote:
> > On Wed, Oct 26, 2016 at 11:44:51AM -0700, Bart Van Assche wrote:
> > > +static void scsi_remove_device_async(struct scsi_device *sdev)
> > > +{
> > > + if (scsi_device_get(sdev) < 0)
> >
> > Nit: the < 0 could be dropped, scsi_device_get returns either -ENXIO or
> > 0. But no reason to respin.
> >
> > Anyways,
> > Reviewed-by: Johannes Thumshirn <[email protected]>
>
> Hello Johannes,
>
> Thanks for the review. But I'd like to clarify that I added the "< 0" on
> purpose. Some *_get*() functions in the Linux kernel return 0 upon failure
> (e.g. kref_get_unless_zero()) and others a negative value (e.g.
> scsi_device_get()). The "< 0" part avoids that someone who reads this code
> has to look up what return value convention scsi_device_get() uses.
OK, that makes sense to me.
Johannes
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