On Tue, Jun 27, 2017 at 01:01:22PM +0200, Frans Klaver wrote:
> On Tue, Jun 27, 2017 at 12:43 PM, Rakesh Pandit <rakesh@xxxxxxxxxx> wrote:
> > While creating new device with NVM_DEV_CREATE if LUNs are already
> > allocated ioctl would return -ENOMEM which is wrong. This patch
> > propagates -EBUSY from nvm_reserve_luns which is correct response.
> >
> > Fixes: ade69e243 ("lightnvm: merge gennvm with core")
> > Signed-off-by: Rakesh Pandit <rakesh@xxxxxxxxxx>
> > ---
> >
> > V2: return error code directly instead of using ret variable (Frans)
> >
> > drivers/lightnvm/core.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
> > index b8f82f5..c5d71c6 100644
> > --- a/drivers/lightnvm/core.c
> > +++ b/drivers/lightnvm/core.c
> > @@ -253,7 +253,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
> > mutex_unlock(&dev->mlock);
> >
> > if (nvm_reserve_luns(dev, s->lun_begin, s->lun_end))
> > - return -ENOMEM;
> > + return -EBUSY;
>
> Why aren't you propagating ret in this version?
Well nvm_reserve_luns either returns 0 or -EBUSY and it is unlikely
that return value would change and even if it does this can be
updated.
