if (!dev)
goto error;
- lock_kernel();
switch (len) {
case 1:
cfg_ret = pci_user_read_config_byte(dev, off, &byte);
break;
default:
err = -EINVAL;
- unlock_kernel();
goto error;
};
- unlock_kernel();
err = -EIO;
if (cfg_ret != PCIBIOS_SUCCESSFUL)
if (!dev)
return -ENODEV;
- lock_kernel();
switch(len) {
case 1:
err = get_user(byte, (u8 __user *)buf);
err = -EINVAL;
break;
}
- unlock_kernel();
pci_dev_put(dev);
return err;
}