diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_mio_common.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_mio_common.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 35ab4a9ef95d..c975f6e8be49 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1929,7 +1929,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, unsigned int *data) { struct ni_private *devpriv = dev->private; - unsigned int mask = (s->maxdata + 1) >> 1; + unsigned int mask = s->maxdata; int i, n; unsigned signbits; unsigned int d; @@ -1972,7 +1972,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, return -ETIME; } d += signbits; - data[n] = d; + data[n] = d & 0xffff; } } else if (devpriv->is_6143) { for (n = 0; n < insn->n; n++) { @@ -2017,8 +2017,8 @@ static int ni_ai_insn_read(struct comedi_device *dev, data[n] = dl; } else { d = ni_readw(dev, NI_E_AI_FIFO_DATA_REG); - d += signbits; /* subtle: needs to be short addition */ - data[n] = d; + d += signbits; + data[n] = d & 0xffff; } } } |