staging: comedi: remove unneeded settings of `dev->iobase`

Some PCI drivers use the "spare" `iobase` member of `struct
comedi_device` as a flag to indicate that the call to
`comedi_pci_enable()` was successful.  This is no longer necessary now
that `comedi_pci_enable()` and `comedi_pci_disable()` use the
`ioenabled` member of `struct comedi_device` themselves to keep track of
what needs to be done.

Remove the unnecessary assignments to the `iobase` member in the
relevant drivers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/cb_pcidas.c

@@ -1458,7 +1458,6 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv->s5933_config = pci_resource_start(pcidev, 0);
 	devpriv->control_status = pci_resource_start(pcidev, 1);

drivers/staging/comedi/drivers/daqboard2000.c

@@ -712,7 +712,6 @@ static int daqboard2000_auto_attach(struct comedi_device *dev,
 	result = comedi_pci_enable(dev);
 	if (result)
 		return result;
-	dev->iobase = 1;	/* the "detach" needs this */
 
 	devpriv->plx = ioremap(pci_resource_start(pcidev, 0),
 			       pci_resource_len(pcidev, 0));

drivers/staging/comedi/drivers/dt3000.c

@@ -738,7 +738,6 @@ static int dt3000_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret < 0)
 		return ret;
-	dev->iobase = 1;	/* the "detach" needs this */
 
 	pci_base  = pci_resource_start(pcidev, 0);
 	devpriv->io_addr = ioremap(pci_base, DT3000_SIZE);

drivers/staging/comedi/drivers/gsc_hpdi.c

@@ -502,7 +502,6 @@ static int hpdi_auto_attach(struct comedi_device *dev,
 	retval = comedi_pci_enable(dev);
 	if (retval)
 		return retval;
-	dev->iobase = 1;	/* the "detach" needs this */
 	pci_set_master(pcidev);
 
 	devpriv->plx9080_iobase =

drivers/staging/comedi/drivers/jr3_pci.c

@@ -705,7 +705,6 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 	result = comedi_pci_enable(dev);
 	if (result)
 		return result;
-	dev->iobase = 1;	/* the "detach" needs this */
 
 	devpriv->iobase = ioremap(pci_resource_start(pcidev, 0),
 				  offsetof(struct jr3_t,

drivers/staging/comedi/drivers/me_daq.c

@@ -514,7 +514,6 @@ static int me_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;	/* detach needs this */
 
 	dev_private->plx_regbase = ioremap(pci_resource_start(pcidev, 0),
 					   pci_resource_len(pcidev, 0));

drivers/staging/comedi/drivers/ni_6527.c

@@ -339,7 +339,6 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)

drivers/staging/comedi/drivers/ni_65xx.c

@@ -603,7 +603,6 @@ static int ni_65xx_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)

drivers/staging/comedi/drivers/ni_660x.c

@@ -1180,7 +1180,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	ret = ni_660x_allocate_private(dev);
 	if (ret < 0)

drivers/staging/comedi/drivers/ni_670x.c

@@ -211,7 +211,6 @@ static int ni_670x_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)

drivers/staging/comedi/drivers/ni_labpc.c

@@ -711,7 +711,6 @@ static int labpc_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)

drivers/staging/comedi/drivers/ni_pcidio.c

@@ -1115,7 +1115,6 @@ static int nidio_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)

drivers/staging/comedi/drivers/ni_pcimio.c

@@ -1491,7 +1491,6 @@ static int pcimio_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;
 
 	ret = ni_alloc_private(dev);
 	if (ret)

drivers/staging/comedi/drivers/rtd520.c

@@ -1286,7 +1286,6 @@ static int rtd_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;	/* the "detach" needs this */
 
 	devpriv->las0 = ioremap_nocache(pci_resource_start(pcidev, 2),
 					pci_resource_len(pcidev, 2));

drivers/staging/comedi/drivers/s626.c

@@ -2676,7 +2676,6 @@ static int s626_auto_attach(struct comedi_device *dev,
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = 1;	/* detach needs this */
 
 	devpriv->base_addr = ioremap(pci_resource_start(pcidev, 0),
 				     pci_resource_len(pcidev, 0));