staging: comedi: amplc_pci224: Fix PCI ref count

When attaching a PCI device manually via the comedi driver `attach` hook
(`pci224_attach()`) (called by the comedi core for the
`COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the
`for_each_pci_dev` loop (in `pci224_find_pci_dev()`).  It is decremented
when the `detach` hook (`pci224_detach()`) is called to detach the
device.  However, when the PCI device is attached automatically via the
`attach_pci` hook (`pci224_attach_pci()`, called at probe time via
`comedi_pci_auto_config()`) it's reference count is not incremented so
there will be an unmatched decrement when detaching the device.

Increment the PCI device reference count in `pci224_attach_pci()` to
correct the mismatch.

Once support for manual configuration has been removed from this driver,
the calls to `pci_dev_get()` and `pci_dev_put()` can be removed.

Cc: stable <[email protected]> # 3.5.x
Signed-off-by: Ian Abbott <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions