Re: propagating failures down to pci_module_init()

Christoph Hellwig (hch@infradead.org)
Mon, 20 Jan 2003 16:33:21 +0000


On Mon, Jan 20, 2003 at 03:54:35PM +0000, Dave Jones wrote:
> I've got a wierd situation with a certain chipset for agpgart.
> There are a few cases where I want to be able to use the existing
> pci_driver api to detect the right PCI device, and call
> the relevant .probe routine. No problem there.
>
> The problem is that in these cases, I want to be able to read
> a certain register in that device, and if a bit is 0, bail out
> of the .probe function with -ENODEV, and make the loading of
> the module fail.
>
> The problem is that the ENODEV in my .probe routine doesn't
> propagate back down as far as pci_module_init().
>
> Ideas ?

Just use pci_register_driver.

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