staging: comedi: adv_pci1710: post increment 'subdev' in (*auto_attach)
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Fri, 13 Nov 2015 18:11:20 +0000 (11:11 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 18 Dec 2015 22:56:30 +0000 (14:56 -0800)
For aesthetics, post-increment the 'subdev' index when used to get a
comedi_subdevice pointer instead of incrementing it after the subdevice
is initialized.

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>
drivers/staging/comedi/drivers/adv_pci1710.c

index f68cb1a6836ec30ce6f656be01a15f1f00264a35..e36b54045eb4bcabc367e4d4e1e2e1a684b13390 100644 (file)
@@ -791,7 +791,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
        subdev = 0;
 
        /* Analog Input subdevice */
-       s = &dev->subdevices[subdev];
+       s = &dev->subdevices[subdev++];
        s->type         = COMEDI_SUBD_AI;
        s->subdev_flags = SDF_READABLE | SDF_GROUND;
        if (!board->is_pci1711)
@@ -817,11 +817,9 @@ static int pci1710_auto_attach(struct comedi_device *dev,
                }
        }
 
-       subdev++;
-
        if (board->has_ao) {
                /* Analog Output subdevice */
-               s = &dev->subdevices[subdev];
+               s = &dev->subdevices[subdev++];
                s->type         = COMEDI_SUBD_AO;
                s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
                s->n_chan       = 2;
@@ -832,33 +830,29 @@ static int pci1710_auto_attach(struct comedi_device *dev,
                ret = comedi_alloc_subdev_readback(s);
                if (ret)
                        return ret;
-
-               subdev++;
        }
 
        if (!board->is_pci1713) {
                /* Digital Input subdevice */
-               s = &dev->subdevices[subdev];
+               s = &dev->subdevices[subdev++];
                s->type         = COMEDI_SUBD_DI;
                s->subdev_flags = SDF_READABLE;
                s->n_chan       = 16;
                s->maxdata      = 1;
                s->range_table  = &range_digital;
                s->insn_bits    = pci1710_di_insn_bits;
-               subdev++;
 
                /* Digital Output subdevice */
-               s = &dev->subdevices[subdev];
+               s = &dev->subdevices[subdev++];
                s->type         = COMEDI_SUBD_DO;
                s->subdev_flags = SDF_WRITABLE;
                s->n_chan       = 16;
                s->maxdata      = 1;
                s->range_table  = &range_digital;
                s->insn_bits    = pci1710_do_insn_bits;
-               subdev++;
 
                /* Counter subdevice (8254) */
-               s = &dev->subdevices[subdev];
+               s = &dev->subdevices[subdev++];
                comedi_8254_subdevice_init(s, dev->pacer);
 
                dev->pacer->insn_config = pci1710_counter_insn_config;
@@ -866,8 +860,6 @@ static int pci1710_auto_attach(struct comedi_device *dev,
                /* counters 1 and 2 are used internally for the pacer */
                comedi_8254_set_busy(dev->pacer, 1, true);
                comedi_8254_set_busy(dev->pacer, 2, true);
-
-               subdev++;
        }
 
        /* max_samples is half the FIFO size (2 bytes/sample) */