From: Ian Abbott Date: Fri, 25 Jul 2014 17:07:09 +0000 (+0100) Subject: staging: comedi: amplc_dio200_pci: no need to test board pointer in dio200_pci_detach() X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~9896^2~166 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=5d3d4b26f585e09159d3059a7459ab43eaed39a8;p=mirror_ubuntu-artful-kernel.git staging: comedi: amplc_dio200_pci: no need to test board pointer in dio200_pci_detach() `dio200_pci_detach()` doesn't need to check if the pointer to constant board data (`thisboard`) and the pointer to private per-device data (`devpriv`) are valid before calling `amplc_dio200_common_detach()`. It has no further need to check `thisboard` so remove the variable altogether. Move the test of `devpriv` to the first point it is needs to be valid. Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/amplc_dio200_pci.c b/drivers/staging/comedi/drivers/amplc_dio200_pci.c index 3cec0e020adb..1954c1bd23db 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200_pci.c +++ b/drivers/staging/comedi/drivers/amplc_dio200_pci.c @@ -414,13 +414,10 @@ static int dio200_pci_auto_attach(struct comedi_device *dev, static void dio200_pci_detach(struct comedi_device *dev) { - const struct dio200_board *thisboard = comedi_board(dev); struct dio200_private *devpriv = dev->private; - if (!thisboard || !devpriv) - return; amplc_dio200_common_detach(dev); - if (devpriv->io.regtype == mmio_regtype) + if (devpriv && devpriv->io.regtype == mmio_regtype) iounmap(devpriv->io.u.membase); comedi_pci_disable(dev); }