diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_at_a2150.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_at_a2150.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index 2512ce8dfcaa..63c847932eb8 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -154,7 +154,7 @@ struct a2150_private { volatile unsigned int count; /* number of data points left to be taken */ unsigned int dma; /* dma channel */ - s16 *dma_buffer; /* dma buffer */ + uint16_t *dma_buffer; /* dma buffer */ unsigned int dma_transfer_size; /* size in bytes of dma transfers */ int irq_dma_bits; /* irq/dma register bits */ int config_bits; /* config register bits */ @@ -192,7 +192,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d) struct comedi_async *async; struct comedi_cmd *cmd; unsigned int max_points, num_points, residue, leftover; - short dpnt; + unsigned short dpnt; static const int sample_size = sizeof(devpriv->dma_buffer[0]); if (!dev->attached) { @@ -684,13 +684,12 @@ static int a2150_set_chanlist(struct comedi_device *dev, devpriv->config_bits |= CHANNEL_BITS(0x4 | start_channel); break; case 2: - if (start_channel == 0) { + if (start_channel == 0) devpriv->config_bits |= CHANNEL_BITS(0x2); - } else if (start_channel == 2) { + else if (start_channel == 2) devpriv->config_bits |= CHANNEL_BITS(0x3); - } else { + else return -1; - } break; case 4: devpriv->config_bits |= CHANNEL_BITS(0x1); |