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staging: comedi: ni_670x: use mite_alloc()

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Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2012-09-14 17:34:29 +01:00 • committed by Greg Kroah-Hartman
parent 05ac0635a5
commit 6bc42c2228
1 changed files with 5 additions and 17 deletions
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22
drivers/staging/comedi/drivers/ni_670x.c
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@ -187,20 +187,6 @@ static int ni_670x_dio_insn_config(struct comedi_device *dev,
return insn->n;
}
/* FIXME: remove this when dynamic MITE allocation implemented. */
static struct mite_struct *ni_670x_find_mite(struct pci_dev *pcidev)
{
struct mite_struct *mite;
for (mite = mite_devices; mite; mite = mite->next) {
if (mite->used)
continue;
if (mite->pcidev == pcidev)
return mite;
}
return NULL;
}
static const struct ni_670x_board *
ni_670x_find_boardinfo(struct pci_dev *pcidev)
{
@ -231,9 +217,9 @@ static int __devinit ni_670x_attach_pci(struct comedi_device *dev,
dev->board_ptr = ni_670x_find_boardinfo(pcidev);
if (!dev->board_ptr)
return -ENODEV;
devpriv->mite = ni_670x_find_mite(pcidev);
devpriv->mite = mite_alloc(pcidev);
if (!devpriv->mite)
return -ENODEV;
return -ENOMEM;
thisboard = comedi_board(dev);
ret = mite_setup(devpriv->mite);
@ -303,8 +289,10 @@ static void ni_670x_detach(struct comedi_device *dev)
if (s)
kfree(s->range_table_list);
}
if (devpriv && devpriv->mite)
if (devpriv && devpriv->mite) {
mite_unsetup(devpriv->mite);
mite_free(devpriv->mite);
}
if (dev->irq)
free_irq(dev->irq, dev);
}