staging: comedi: remove redundant variable segpos

Variable segpos is being assigned but is never used hence it is redundant
and can be removed.

Cleans up clang warning:
warning: variable 'segpos' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcl816.c

@@ -282,7 +282,7 @@ static int check_channel_list(struct comedi_device *dev,
 			      unsigned int chanlen)
 {
 	unsigned int chansegment[16];
-	unsigned int i, nowmustbechan, seglen, segpos;
+	unsigned int i, nowmustbechan, seglen;
 
 	/*  correct channel and range number check itself comedi/range.c */
 	if (chanlen < 1) {
@@ -312,7 +312,7 @@ static int check_channel_list(struct comedi_device *dev,
 		}
 
 		/*  check whole chanlist */
-		for (i = 0, segpos = 0; i < chanlen; i++) {
+		for (i = 0; i < chanlen; i++) {
 			if (chanlist[i] != chansegment[i % seglen]) {
 				dev_dbg(dev->class_dev,
 					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",

drivers/staging/comedi/drivers/pcl818.c

@@ -573,7 +573,7 @@ static int check_channel_list(struct comedi_device *dev,
 			      unsigned int *chanlist, unsigned int n_chan)
 {
 	unsigned int chansegment[16];
-	unsigned int i, nowmustbechan, seglen, segpos;
+	unsigned int i, nowmustbechan, seglen;
 
 	/* correct channel and range number check itself comedi/range.c */
 	if (n_chan < 1) {
@@ -605,7 +605,7 @@ static int check_channel_list(struct comedi_device *dev,
 		}
 
 		/*  check whole chanlist */
-		for (i = 0, segpos = 0; i < n_chan; i++) {
+		for (i = 0; i < n_chan; i++) {
 			if (chanlist[i] != chansegment[i % seglen]) {
 				dev_dbg(dev->class_dev,
 					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",