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pcmcia: do not load the pd6729 driver if io_base is NULL

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The CL-PD6729 chip in some docking station is not initialized properly
under Linux. In that case, do not load the pd6729 driver.

[Dominik Brodowski <linux@dominikbrodowski.net>: spelling fixes, check for NULL not 0]
Signed-off-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Komuro 2009-10-24 08:07:39 +09:00 committed by Dominik Brodowski
parent 5f784336dc
commit 94efb72328
1 changed files with 6 additions and 0 deletions
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6
drivers/pcmcia/pd6729.c
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@ -641,6 +641,12 @@ static int __devinit pd6729_pci_probe(struct pci_dev *dev,
if ((ret = pci_enable_device(dev))) if ((ret = pci_enable_device(dev)))
goto err_out_free_mem; goto err_out_free_mem;
if (!pci_resource_start(dev, 0)) {
printk(KERN_INFO "pd6729: refusing to load the driver "
"as the io_base is 0.\n");
goto err_out_free_mem;
}
printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge " printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge "
"at 0x%llx on irq %d\n", "at 0x%llx on irq %d\n",
(unsigned long long)pci_resource_start(dev, 0), dev->irq); (unsigned long long)pci_resource_start(dev, 0), dev->irq);