staging: comedi: cb_pcidas: sample types are unsigned

Sample values in comedi are generally represented by unsigned values.
Change the element types of `ai_buffer[]`, `ao_buffer[]` and
`ao_value[]` in `struct cb_pcidas_private` to `unsigned short` for
consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 0891659..e72a403 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -357,15 +357,15 @@ struct cb_pcidas_private {
        unsigned int s5933_intcsr_bits;
        unsigned int ao_control_bits;
        /* fifo buffers */
-       short ai_buffer[AI_BUFFER_SIZE];
-       short ao_buffer[AO_BUFFER_SIZE];
+       unsigned short ai_buffer[AI_BUFFER_SIZE];
+       unsigned short ao_buffer[AO_BUFFER_SIZE];
        /* divisors of master clock for analog output pacing */
        unsigned int ao_divisor1;
        unsigned int ao_divisor2;
        /* number of analog output samples remaining */
        unsigned int ao_count;
        /* cached values for readback */
-       int ao_value[2];
+       unsigned short ao_value[2];
        unsigned int caldac_value[NUM_CHANNELS_8800];
        unsigned int trimpot_value[NUM_CHANNELS_8402];
        unsigned int dac08_value;