Re: [PATCH] librdmacm: Set errno correctly if status is positive

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On Wed, Jan 10, 2018 at 11:29:32AM -0700, Jason Gunthorpe wrote:
> On Wed, Jan 10, 2018 at 06:07:21PM +0200, Yuval Shaia wrote:
> > No need to convert to positive if status is already positive.
> > 
> > Fixes: 1ef5c3a84 ("librdmacm: Set errno correctly in ucma_complete")
> > 
> > Signed-off-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
> >  librdmacm/cma.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/librdmacm/cma.c b/librdmacm/cma.c
> > index 25ebaaee..fb2dc5e4 100644
> > +++ b/librdmacm/cma.c
> > @@ -866,7 +866,7 @@ int ucma_complete(struct rdma_cm_id *id)
> >  		else if (id_priv->id.event->status < 0)
> >  			ret = ERR(-id_priv->id.event->status);
> >  		else
> > -			ret = ERR(-id_priv->id.event->status);
> > +			ret = ERR(id_priv->id.event->status);
> 
> This code hurts my brain - why is status sometimes a possitive errno
> and sometimes a negative errno?

Have no idea :)
But since current code ask "if (id_priv->id.event->status < 0)" i assume it
can.

> 
> Jason
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