diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7280a.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad7280a.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c index 0bb9ab174f2a..7a0ba26f9fd9 100644 --- a/drivers/staging/iio/adc/ad7280a.c +++ b/drivers/staging/iio/adc/ad7280a.c @@ -561,6 +561,7 @@ static int ad7280_attr_init(struct ad7280_state *st) { int dev, ch, cnt; unsigned int index; + struct iio_dev_attr *iio_attr; st->iio_attr = devm_kcalloc(&st->spi->dev, 2, sizeof(*st->iio_attr) * (st->slave_num + 1) * AD7280A_CELLS_PER_DEV, @@ -571,37 +572,35 @@ static int ad7280_attr_init(struct ad7280_state *st) for (dev = 0, cnt = 0; dev <= st->slave_num; dev++) for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_CELL_VOLTAGE_6; ch++, cnt++) { + iio_attr = &st->iio_attr[cnt]; index = dev * AD7280A_CELLS_PER_DEV + ch; - st->iio_attr[cnt].address = - ad7280a_devaddr(dev) << 8 | ch; - st->iio_attr[cnt].dev_attr.attr.mode = - 0644; - st->iio_attr[cnt].dev_attr.show = - ad7280_show_balance_sw; - st->iio_attr[cnt].dev_attr.store = - ad7280_store_balance_sw; - st->iio_attr[cnt].dev_attr.attr.name = + iio_attr->address = ad7280a_devaddr(dev) << 8 | ch; + iio_attr->dev_attr.attr.mode = 0644; + iio_attr->dev_attr.show = ad7280_show_balance_sw; + iio_attr->dev_attr.store = ad7280_store_balance_sw; + iio_attr->dev_attr.attr.name = devm_kasprintf(&st->spi->dev, GFP_KERNEL, "in%d-in%d_balance_switch_en", index, index + 1); - ad7280_attributes[cnt] = - &st->iio_attr[cnt].dev_attr.attr; + if (!iio_attr->dev_attr.attr.name) + return -ENOMEM; + + ad7280_attributes[cnt] = &iio_attr->dev_attr.attr; cnt++; - st->iio_attr[cnt].address = - ad7280a_devaddr(dev) << 8 | + iio_attr = &st->iio_attr[cnt]; + iio_attr->address = ad7280a_devaddr(dev) << 8 | (AD7280A_CB1_TIMER + ch); - st->iio_attr[cnt].dev_attr.attr.mode = - 0644; - st->iio_attr[cnt].dev_attr.show = - ad7280_show_balance_timer; - st->iio_attr[cnt].dev_attr.store = - ad7280_store_balance_timer; - st->iio_attr[cnt].dev_attr.attr.name = + iio_attr->dev_attr.attr.mode = 0644; + iio_attr->dev_attr.show = ad7280_show_balance_timer; + iio_attr->dev_attr.store = ad7280_store_balance_timer; + iio_attr->dev_attr.attr.name = devm_kasprintf(&st->spi->dev, GFP_KERNEL, "in%d-in%d_balance_timer", index, index + 1); - ad7280_attributes[cnt] = - &st->iio_attr[cnt].dev_attr.attr; + if (!iio_attr->dev_attr.attr.name) + return -ENOMEM; + + ad7280_attributes[cnt] = &iio_attr->dev_attr.attr; } ad7280_attributes[cnt] = NULL; |