diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/dt2801.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/dt2801.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c index c59a652a1194..f6942aaf0ecd 100644 --- a/drivers/staging/comedi/drivers/dt2801.c +++ b/drivers/staging/comedi/drivers/dt2801.c @@ -233,8 +233,6 @@ struct dt2801_private { unsigned int ao_readback[2]; }; -#define devpriv ((struct dt2801_private *)dev->private) - /* These are the low-level routines: writecommand: write a command to the board writedata: write data byte @@ -508,6 +506,8 @@ static int dt2801_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2801_private *devpriv = dev->private; + data[0] = devpriv->ao_readback[CR_CHAN(insn->chanspec)]; return 1; @@ -517,6 +517,8 @@ static int dt2801_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2801_private *devpriv = dev->private; + dt2801_writecmd(dev, DT_C_WRITE_DAIM); dt2801_writedata(dev, CR_CHAN(insn->chanspec)); dt2801_writedata2(dev, data[0]); @@ -590,6 +592,7 @@ static int dt2801_dio_insn_config(struct comedi_device *dev, */ static int dt2801_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt2801_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; int board_code, type; @@ -630,9 +633,10 @@ havetype: if (ret) goto out; - ret = alloc_private(dev, sizeof(struct dt2801_private)); - if (ret < 0) - return ret; + devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); + if (!devpriv) + return -ENOMEM; + dev->private = devpriv; dev->board_name = boardtype.name; |