diff options
| -rw-r--r-- | drivers/pcmcia/yenta_socket.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index f0997c36c9b7..2e43911b4876 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1045,7 +1045,18 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i { struct yenta_socket *socket; int ret; - + + /* + * If we failed to assign proper bus numbers for this cardbus + * controller during PCI probe, its subordinate pci_bus is NULL. + * Bail out if so. + */ + if (!dev->subordinate) { + printk(KERN_ERROR "Yenta: no bus associated with %s!\n", + pci_name(dev)); + return -ENODEV; + } + socket = kmalloc(sizeof(struct yenta_socket), GFP_KERNEL); if (!socket) return -ENOMEM; |