Re: [PATCH] PCI: tegra: Fix reporting GPIO error value

From: Michał Mirosław
Date: Wed Apr 15 2020 - 12:49:39 EST


On Wed, Apr 15, 2020 at 01:17:36PM +0200, Pali Rohár wrote:
> On Tuesday 14 April 2020 13:31:04 Michał Mirosław wrote:
> > On Tue, Apr 14, 2020 at 12:25:12PM +0200, Pali Rohár wrote:
> > > Error code is stored in rp->reset_gpio and not in err variable.a
[...]
> > > - dev_err(dev, "failed to get reset GPIO: %d\n",
> > > - err);
> > > + dev_err(dev, "failed to get reset GPIO: %ld\n",
> > > + PTR_ERR(rp->reset_gpio));
> > > return PTR_ERR(rp->reset_gpio);
> > > }
> > > }
> >
> > You can use %pe directly on the pointer for added benefit of translation
> > of the error to a name.
>
> Well, I do not know what is the current preferred style of error
> messages. On lot of places I see just numeric error numbers.

%pe is quite a recent addition to the kernel (since v5.3).

Best Regards
Michał Mirosław