[U-Boot] [PATCH v2 1/3] usb: usb_new_device return codes consistency

[Paul Kocialkowski <contact@paulk.fr>]

Le lundi 30 mars 2015 ? 10:06 +0200, Lukasz Majewski a ?crit :
> Hi Paul,
> 
> > Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
> > ---
> >  common/usb.c | 8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/common/usb.c b/common/usb.c
> > index 32e15cd..ea5b406 100644
> > --- a/common/usb.c
> > +++ b/common/usb.c
> > @@ -915,7 +915,7 @@ int usb_new_device(struct usb_device *dev)
> >  	if (err < 8) {
> >  		printf("\n      USB device not responding, " \
> >  		       "giving up (status=%lX)\n", dev->status);
> > -		return 1;
> > +		return -1;
> 
> If you are going to provide consistency with error codes, then I think
> that it would be beneficial to return -Exxx codes (like -EINVAL, etc).

That makes sense, I'll give it a try soon (I'm not sure I'll get all the
appropriate error codes right at first try though).

> >  	}
> >  	memcpy(&dev->descriptor, tmpbuf, 8);
> >  #else
> > @@ -952,7 +952,7 @@ int usb_new_device(struct usb_device *dev)
> >  	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64);
> >  	if (err < 0) {
> >  		debug("usb_new_device: usb_get_descriptor()
> > failed\n");
> > -		return 1;
> > +		return -1;
> >  	}
> >  
> >  	dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0;
> > @@ -968,7 +968,7 @@ int usb_new_device(struct usb_device *dev)
> >  		err = hub_port_reset(dev->parent, dev->portnr - 1,
> > &portstatus); if (err < 0) {
> >  			printf("\n     Couldn't reset port %i\n",
> > dev->portnr);
> > -			return 1;
> > +			return -1;
> >  		}
> >  	} else {
> >  		usb_reset_root_port();
> > @@ -1014,7 +1014,7 @@ int usb_new_device(struct usb_device *dev)
> >  		else
> >  			printf("USB device descriptor short read " \
> >  				"(expected %i, got %i)\n", tmp, err);
> > -		return 1;
> > +		return -1;
> >  	}
> >  	memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor));
> >  	/* correct le values */
> 
> 
> 

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