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authorKomuro <komurojun-mbn@nifty.com>2009-10-24 08:07:39 +0900
committerDominik Brodowski <linux@dominikbrodowski.net>2009-10-24 17:08:37 +0200
commit94efb72328afa29ea5fd93e48ed17489afcdaa12 (patch)
tree1bfd6b30ff0d5b19c5a2b925f3b07495c32796b9 /drivers/pcmcia/pd6729.c
parent5f784336dc02a1c5be3dffac3506bc07c1604cee (diff)
pcmcia: do not load the pd6729 driver if io_base is NULL
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>
Diffstat (limited to 'drivers/pcmcia/pd6729.c')
-rw-r--r--drivers/pcmcia/pd6729.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
index 1c39d3438f2..70a33468bcd 100644
--- a/drivers/pcmcia/pd6729.c
+++ b/drivers/pcmcia/pd6729.c
@@ -641,6 +641,12 @@ static int __devinit pd6729_pci_probe(struct pci_dev *dev,
if ((ret = pci_enable_device(dev)))
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 "
"at 0x%llx on irq %d\n",
(unsigned long long)pci_resource_start(dev, 0), dev->irq);