Messages in this thread | | | Date | Sun, 20 Feb 2005 12:38:17 +0000 | From | Russell King <> | Subject | Re: Why does printk helps PCMCIA card to initialise? |
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On Sun, Feb 20, 2005 at 12:44:25PM +0100, Martin Drohmann wrote: > #ifdef CONFIG_PCI > if (s->cb_dev) { > ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, > min, 0, pcmcia_align, &data); > } else > #endif > - printk("This line will never be printed, but it helps!!!");
If you added this, you've done much more than just adding it. Look two lines above and realise that you've just changed what the "else" clause conditionalises.
> ret = allocate_resource(&ioport_resource, res, num, min, > ~0UL, > 1, pcmcia_align, &data);
So, with your printk in place, we try pci_bus_alloc_resource. If that succeeds or fails, we completely stomp on that with allocate_resource. Bad. Very bad.
The first thing that needs solving is why you're getting the "odd IO request" crap. That may explain why the resource can't be allocated.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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