diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/usbduxsigma.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/usbduxsigma.c | 36 |
1 files changed, 8 insertions, 28 deletions
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c index f21bb0dd9167..465afbdf4069 100644 --- a/drivers/staging/comedi/drivers/usbduxsigma.c +++ b/drivers/staging/comedi/drivers/usbduxsigma.c @@ -2801,37 +2801,17 @@ static int usbduxsigma_attach(struct comedi_device *dev, return 0; } -static int usbduxsigma_detach(struct comedi_device *dev) +static void usbduxsigma_detach(struct comedi_device *dev) { - struct usbduxsub *usbduxsub_tmp; + struct usbduxsub *usb = dev->private; - if (!dev) { - printk(KERN_ERR - "comedi? usbduxsigma detach: dev=NULL\n"); - return -EFAULT; - } - - usbduxsub_tmp = dev->private; - if (!usbduxsub_tmp) { - printk(KERN_ERR - "comedi?: usbduxsigma detach: private=NULL\n"); - return -EFAULT; + if (usb) { + down(&usb->sem); + dev->private = NULL; + usb->attached = 0; + usb->comedidev = NULL; + up(&usb->sem); } - - dev_dbg(&usbduxsub_tmp->interface->dev, - "comedi%d: detach usb device\n", - dev->minor); - - down(&usbduxsub_tmp->sem); - /* Don't allow detach to free the private structure */ - /* It's one entry of of usbduxsub[] */ - dev->private = NULL; - usbduxsub_tmp->attached = 0; - usbduxsub_tmp->comedidev = NULL; - dev_info(&usbduxsub_tmp->interface->dev, - "comedi%d: successfully detached.\n", dev->minor); - up(&usbduxsub_tmp->sem); - return 0; } /* main driver struct */ |