diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-05-27 10:12:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 14:25:56 -0700 |
| commit | 815bb5b5c9778a9ee019475911db02cc395e676a (patch) | |
| tree | 5541021c4e75ff44d3cb52f63b8f0ca8fc638121 | |
| parent | 9c1efda8388fd9f6f99df0053eb25996a39fba89 (diff) | |
staging: comedi: cb_pcidas: use comedi_fc helpers to validate timer args
Use the comedi_fc helper cfc_check_trigger_arg_is() to validate the
trigger arguments when the source is TRIG_TIMER.
All the arguments are unsigned int, change the local variable to an
unsigned int and rename it for aesthetic reasons.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index 0df55dd0fb53..7b029596b11f 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -837,7 +837,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, const struct cb_pcidas_board *thisboard = comedi_board(dev); struct cb_pcidas_private *devpriv = dev->private; int err = 0; - int tmp; + unsigned int arg; /* Step 1 : check if triggers are trivially valid */ @@ -912,22 +912,20 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, /* step 4: fix up any arguments */ if (cmd->scan_begin_src == TRIG_TIMER) { - tmp = cmd->scan_begin_arg; + arg = cmd->scan_begin_arg; i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, &devpriv->divisor1, &devpriv->divisor2, - &cmd->scan_begin_arg, cmd->flags); - if (tmp != cmd->scan_begin_arg) - err++; + &arg, cmd->flags); + err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg); } if (cmd->convert_src == TRIG_TIMER) { - tmp = cmd->convert_arg; + arg = cmd->convert_arg; i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, &devpriv->divisor1, &devpriv->divisor2, - &cmd->convert_arg, cmd->flags); - if (tmp != cmd->convert_arg) - err++; + &arg, cmd->flags); + err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg); } if (err) @@ -1064,7 +1062,7 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, const struct cb_pcidas_board *thisboard = comedi_board(dev); struct cb_pcidas_private *devpriv = dev->private; int err = 0; - int tmp; + unsigned int arg; /* Step 1 : check if triggers are trivially valid */ @@ -1107,13 +1105,12 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, /* step 4: fix up any arguments */ if (cmd->scan_begin_src == TRIG_TIMER) { - tmp = cmd->scan_begin_arg; + arg = cmd->scan_begin_arg; i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, &devpriv->ao_divisor1, &devpriv->ao_divisor2, - &cmd->scan_begin_arg, cmd->flags); - if (tmp != cmd->scan_begin_arg) - err++; + &arg, cmd->flags); + err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg); } if (err) |