Re: [PATCH 2/5] usb/net2272: cleanup pci_register_driver() error path

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On Thursday, June 09, 2011 16:43:24 Sebastian Andrzej Siewior wrote:
> * Mike Frysinger | 2011-06-09 16:29:52 [-0400]:
> >On Thursday, June 09, 2011 16:21:04 Sebastian Andrzej Siewior wrote:
> >>  static int __init net2272_init(void)
> >>  {
> >> 
> >> -	return pci_register_driver(&net2272_pci_driver) &
> >> -		platform_driver_register(&net2272_plat_driver);
> >> +	int ret;
> >> +
> >> +	ret = net2272_pci_register();
> >> +	if (ret)
> >> +		return ret;
> >> +	ret = platform_driver_register(&net2272_plat_driver);
> >> +	if (ret)
> >> +		goto err_pci;
> >> +	return ret;
> >> +
> >> +err_pci:
> >> +	net2272_pci_unregister();
> >> +	return ret;
> >> 
> >>  }
> >
> >the original code was kind of as intended.  if one of the registers
> >succeed, i'd like the over all func to succeed.
> 
> Isn't something exploding if we try to unregister a driver which was
> never registered?

that's a good point.  i dont know the answer.  you probably would get at least 
a warning at runtime.
-mike

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