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path: root/drivers/staging/comedi/drivers/das800.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/das800.c')
-rw-r--r--drivers/staging/comedi/drivers/das800.c34
1 files changed, 18 insertions, 16 deletions
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 4c28b383869..3711f81321d 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -314,9 +314,6 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
const struct das800_board *thisboard = comedi_board(dev);
struct das800_private *devpriv = dev->private;
int err = 0;
- int tmp;
- int gain, startChan;
- int i;
/* Step 1 : check if triggers are trivially valid */
@@ -362,11 +359,13 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
/* step 4: fix up any arguments */
if (cmd->convert_src == TRIG_TIMER) {
- tmp = cmd->convert_arg;
+ int tmp = cmd->convert_arg;
+
/* calculate counter values that give desired timing */
- i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1),
- &(devpriv->divisor2),
- &(cmd->convert_arg),
+ i8253_cascade_ns_to_timer_2div(TIMER_BASE,
+ &devpriv->divisor1,
+ &devpriv->divisor2,
+ &cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
if (tmp != cmd->convert_arg)
err++;
@@ -377,18 +376,21 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
/* check channel/gain list against card's limitations */
if (cmd->chanlist) {
- gain = CR_RANGE(cmd->chanlist[0]);
- startChan = CR_CHAN(cmd->chanlist[0]);
+ unsigned int chan = CR_CHAN(cmd->chanlist[0]);
+ unsigned int range = CR_RANGE(cmd->chanlist[0]);
+ unsigned int next;
+ int i;
+
for (i = 1; i < cmd->chanlist_len; i++) {
- if (CR_CHAN(cmd->chanlist[i]) !=
- (startChan + i) % N_CHAN_AI) {
- comedi_error(dev,
- "entries in chanlist must be consecutive channels, counting upwards\n");
+ next = cmd->chanlist[i];
+ if (CR_CHAN(next) != (chan + i) % N_CHAN_AI) {
+ dev_err(dev->class_dev,
+ "chanlist must be consecutive, counting upwards\n");
err++;
}
- if (CR_RANGE(cmd->chanlist[i]) != gain) {
- comedi_error(dev,
- "entries in chanlist must all have the same gain\n");
+ if (CR_RANGE(next) != range) {
+ dev_err(dev->class_dev,
+ "chanlist must all have the same gain\n");
err++;
}
}