staging: comedi: adl_pci9111: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ai_bounce_buffer[]` member of `struct
pci9111_private_data` from `short` to `unsigned short` for consistency.
Also change the type of the `array` variable in `pci9111_ai_munge()`
from `short *` to `unsigned short *`.

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/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 4db46f0..eab8da2 100644 (file)
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -151,7 +151,7 @@ struct pci9111_private_data {
        unsigned int div1;
        unsigned int div2;
 
-       short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
+       unsigned short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
 };
 
 static void plx9050_interrupt_control(unsigned long io_base,
@@ -567,7 +567,7 @@ static void pci9111_ai_munge(struct comedi_device *dev,
                             unsigned int num_bytes,
                             unsigned int start_chan_index)
 {
-       short *array = data;
+       unsigned short *array = data;
        unsigned int maxdata = s->maxdata;
        unsigned int invert = (maxdata + 1) >> 1;
        unsigned int shift = (maxdata == 0xffff) ? 0 : 4;