diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-08-25 17:55:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-30 13:24:54 -0700 |
| commit | aac307f9dd5ce1fe651140a036ab4b0a0571b54a (patch) | |
| tree | 28797d71317c989f4b10ecf517641959dfea7cdb /drivers/staging/comedi/drivers/cb_pcimdda.c | |
| parent | 081b6ee6f1060517a9bcee26418c8ae762c7410e (diff) | |
staging: comedi: comedi_pci: introduce comedi_pci_detach()
Introduce a generic (*detach) function for comedi PCI drivers to handle
the boilerplate code needed to detach a PCI driver.
This function works similar to comedi_legacy_detach() where it will:
* free the dev->irq if it has been requested
* iounmap the dev->mmio addres if it has been ioremap'ed
The helper then calls comedi_pci_disable() to release the regions and
disable the PCI device.
Use the new helper directly for the (*detach) in the following cases:
* where comedi_pci_disable() is used directly for the (*detach)
* where the detach function is just boilerplate
Use the new helper in the (*detach) of the simpler PCI drivers. Call
the helper after disabling interrupts (reset) and before any additional
cleanup (kfree) to avoid any race conditions with the interrupt handler.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcimdda.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcimdda.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c index 361213cdc58e..03043e7b9b58 100644 --- a/drivers/staging/comedi/drivers/cb_pcimdda.c +++ b/drivers/staging/comedi/drivers/cb_pcimdda.c @@ -176,7 +176,7 @@ static struct comedi_driver cb_pcimdda_driver = { .driver_name = "cb_pcimdda", .module = THIS_MODULE, .auto_attach = cb_pcimdda_auto_attach, - .detach = comedi_pci_disable, + .detach = comedi_pci_detach, }; static int cb_pcimdda_pci_probe(struct pci_dev *dev, |