Re: [PATCH] ibmasm: add missing pci_enable_device()

[Bjorn Helgaas <bjorn.helgaas@hp.com>]

On Monday 09 August 2004 11:18 am, Max Asbock wrote:
> I tested this on the hardware. It works fine.
> Is there any reason we shouldn't use dev_err() for the pci_enable error
> message like in the other messages?

That would probably be fine, too.  ISTR looking at one case where the
printk wrapper wouldn't work quite right if pci_enable_device() failed.
But dev_err() looks like it should work fine.

> regards,
> max
> 
> On Wed, 2004-08-04 at 14:32, Bjorn Helgaas wrote:
> > I don't have this hardware, so this has not been tested.
> > 
> > 
> > Add pci_enable_device()/pci_disable_device().  In the past, drivers
> > often worked without this, but it is now required in order to route
> > PCI interrupts correctly.
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> > 
> > ===== drivers/misc/ibmasm/module.c 1.2 vs edited =====
> > --- 1.2/drivers/misc/ibmasm/module.c	2004-05-14 06:00:50 -06:00
> > +++ edited/drivers/misc/ibmasm/module.c	2004-08-04 13:15:46 -06:00
> > @@ -62,10 +62,17 @@
> >  	int result = -ENOMEM;
> >  	struct service_processor *sp;
> >  
> > +	if (pci_enable_device(pdev)) {
> > +		printk(KERN_ERR "%s: can't enable PCI device at %s\n",
> > +			DRIVER_NAME, pci_name(pdev));
> > +		return -ENODEV;
> > +	}
> > +
> >  	sp = kmalloc(sizeof(struct service_processor), GFP_KERNEL);
> >  	if (sp == NULL) {
> >  		dev_err(&pdev->dev, "Failed to allocate memory\n");
> > -		return result;
> > +		result = -ENOMEM;
> > +		goto error_kmalloc;
> >  	}
> >  	memset(sp, 0, sizeof(struct service_processor));
> >  
> > @@ -148,6 +155,8 @@
> >  	ibmasm_event_buffer_exit(sp);
> >  error_eventbuffer:
> >  	kfree(sp);
> > +error_kmalloc:
> > +	pci_disable_device(pdev);
> >  
> >  	return result;
> >  }
> > @@ -166,6 +175,7 @@
> >  	iounmap(sp->base_address);
> >  	ibmasm_event_buffer_exit(sp);
> >  	kfree(sp);
> > +	pci_disable_device(pdev);
> >  }
> >  
> >  static struct pci_device_id ibmasm_pci_table[] =
> > -
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> > 
> 
>