diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/comedi_test.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/comedi_test.c | 71 |
1 files changed, 22 insertions, 49 deletions
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index 7817def1556c..fb3d09323ba1 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -252,55 +252,28 @@ static int waveform_ai_cmdtest(struct comedi_device *dev, if (err) return 2; - /* step 3: make sure arguments are trivially compatible */ + /* Step 3: check if arguments are trivially valid */ + + err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); + + if (cmd->convert_src == TRIG_NOW) + err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0); - if (cmd->start_arg != 0) { - cmd->start_arg = 0; - err++; - } - if (cmd->convert_src == TRIG_NOW) { - if (cmd->convert_arg != 0) { - cmd->convert_arg = 0; - err++; - } - } if (cmd->scan_begin_src == TRIG_TIMER) { - if (cmd->scan_begin_arg < nano_per_micro) { - cmd->scan_begin_arg = nano_per_micro; - err++; - } - if (cmd->convert_src == TRIG_TIMER && - cmd->scan_begin_arg < - cmd->convert_arg * cmd->chanlist_len) { - cmd->scan_begin_arg = - cmd->convert_arg * cmd->chanlist_len; - err++; - } - } - /* - * XXX these checks are generic and should go in core if not there - * already - */ - if (!cmd->chanlist_len) { - cmd->chanlist_len = 1; - err++; - } - if (cmd->scan_end_arg != cmd->chanlist_len) { - cmd->scan_end_arg = cmd->chanlist_len; - err++; + err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, + nano_per_micro); + if (cmd->convert_src == TRIG_TIMER) + err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, + cmd->convert_arg * cmd->chanlist_len); } - if (cmd->stop_src == TRIG_COUNT) { - if (!cmd->stop_arg) { - cmd->stop_arg = 1; - err++; - } - } else { /* TRIG_NONE */ - if (cmd->stop_arg != 0) { - cmd->stop_arg = 0; - err++; - } - } + err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1); + err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); + + if (cmd->stop_src == TRIG_COUNT) + err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1); + else /* TRIG_NONE */ + err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); if (err) return 3; @@ -414,10 +387,10 @@ static int waveform_attach(struct comedi_device *dev, dev->board_name = dev->driver->driver_name; - ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) - return ret; - devpriv = dev->private; + devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); + if (!devpriv) + return -ENOMEM; + dev->private = devpriv; /* set default amplitude and period */ if (amplitude <= 0) |