staging: comedi: comedi_fc: cfc_write_array_to_buffer() data is const

The `data` pointer of `cfc_write_array_to_buffer()` ought to point to `const` data. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
git-mirror · Sep 19, 2014 · 5c520aa · 5c520aa
1 parent 5a78035
commit 5c520aa
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/drivers/staging/comedi/drivers/comedi_fc.c b/drivers/staging/comedi/drivers/comedi_fc.c
@@ -24,7 +24,7 @@
 
 /* Writes an array of data points to comedi's buffer */
 unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *s,
-				       void *data, unsigned int num_bytes)
+				       const void *data, unsigned int num_bytes)
 {
 	struct comedi_async *async = s->async;
 	unsigned int retval;

diff --git a/drivers/staging/comedi/drivers/comedi_fc.h b/drivers/staging/comedi/drivers/comedi_fc.h
@@ -35,8 +35,9 @@ static inline void cfc_inc_scan_progress(struct comedi_subdevice *s,
 }
 
 /* Writes an array of data points to comedi's buffer */
-unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *,
-				       void *data, unsigned int num_bytes);
+unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *s,
+				       const void *data,
+				       unsigned int num_bytes);
 
 static inline unsigned int cfc_write_to_buffer(struct comedi_subdevice *s,
 					       unsigned short data)