staging: comedi: jr3_pci: remove devpriv->pci_enabled

The `pci_enabled` member of `struct jr3_pci_dev_private` is used to
indicate whether the call to `comedi_pci_enable()` was successful.  The
'detach' routine `jr3_pci_detach()` uses this to decide whether to call
`comedi_pci_disable()`.  The `iobase` member of `struct comedi_device`
is not used by this driver so it can be used for the same purpose.

Remove the `pci_enabled` member and use the spare `dev->iobase` instead.

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

diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 40a5b7f..af32099 100644 (file)
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -59,7 +59,6 @@ Devices: [JR3] PCI force sensor board (jr3_pci)
 #define PCI_DEVICE_ID_JR3_4_CHANNEL 0x3114
 
 struct jr3_pci_dev_private {
-       int pci_enabled;
        struct jr3_t __iomem *iobase;
        int n_channels;
        struct timer_list timer;
@@ -787,7 +786,7 @@ static int __devinit jr3_pci_auto_attach(struct comedi_device *dev,
        if (result < 0)
                return -EIO;
 
-       devpriv->pci_enabled = 1;
+       dev->iobase = 1;        /* the "detach" needs this */
        devpriv->iobase = ioremap(pci_resource_start(pcidev, 0),
                        offsetof(struct jr3_t, channel[devpriv->n_channels]));
        if (!devpriv->iobase)
@@ -906,7 +905,7 @@ static void jr3_pci_detach(struct comedi_device *dev)
                }
                if (devpriv->iobase)
                        iounmap(devpriv->iobase);
-               if (devpriv->pci_enabled)
+               if (dev->iobase)
                        comedi_pci_disable(pcidev);
        }
 }