staging: comedi: icp_multi: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ao_data[]` member of `struct
icp_multi_private` from `short` to `unsigned short` for consistency.

Also remove the `ai_data` and `di_data` members as they are not used.

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/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 15d8718..1e16641 100644 (file)
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -118,9 +118,7 @@ struct icp_multi_private {
        unsigned char act_chanlist_len; /*  len of scanlist */
        unsigned char act_chanlist_pos; /*  actual position in MUX list */
        unsigned int *ai_chanlist;      /*  actaul chanlist */
-       short *ai_data;         /*  data buffer */
-       short ao_data[4];       /*  data output buffer */
-       short di_data;          /*  Digital input data */
+       unsigned short ao_data[4];      /*  data output buffer */
        unsigned int do_data;   /*  Remember digital output data */
 };