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authorSachin Kamat <sachin.kamat@linaro.org>2013-08-19 11:38:00 (GMT)
committerJonathan Cameron <jic23@kernel.org>2013-08-19 19:35:35 (GMT)
commit0d7c04d33f3e2f9e3da0a545be747731b4410e32 (patch)
treeaf3ac1285f1f48bcc2e9bb7c291b8b620dca4b7e /drivers/iio
parent7ff0de3faaeb0db80c2c9f03c119167e89594879 (diff)
downloadlinux-fsl-qoriq-0d7c04d33f3e2f9e3da0a545be747731b4410e32.tar.xz
iio: dac: ad5791: Use devm_* APIs
devm_* APIs are device managed and make code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/dac/ad5791.c35
1 files changed, 9 insertions, 26 deletions
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 97c1e5d..ce74589 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -349,17 +349,15 @@ static int ad5791_probe(struct spi_device *spi)
struct ad5791_state *st;
int ret, pos_voltage_uv = 0, neg_voltage_uv = 0;
- indio_dev = iio_device_alloc(sizeof(*st));
- if (indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
st = iio_priv(indio_dev);
- st->reg_vdd = regulator_get(&spi->dev, "vdd");
+ st->reg_vdd = devm_regulator_get(&spi->dev, "vdd");
if (!IS_ERR(st->reg_vdd)) {
ret = regulator_enable(st->reg_vdd);
if (ret)
- goto error_put_reg_pos;
+ return ret;
ret = regulator_get_voltage(st->reg_vdd);
if (ret < 0)
@@ -368,11 +366,11 @@ static int ad5791_probe(struct spi_device *spi)
pos_voltage_uv = ret;
}
- st->reg_vss = regulator_get(&spi->dev, "vss");
+ st->reg_vss = devm_regulator_get(&spi->dev, "vss");
if (!IS_ERR(st->reg_vss)) {
ret = regulator_enable(st->reg_vss);
if (ret)
- goto error_put_reg_neg;
+ goto error_disable_reg_pos;
ret = regulator_get_voltage(st->reg_vss);
if (ret < 0)
@@ -428,19 +426,9 @@ static int ad5791_probe(struct spi_device *spi)
error_disable_reg_neg:
if (!IS_ERR(st->reg_vss))
regulator_disable(st->reg_vss);
-error_put_reg_neg:
- if (!IS_ERR(st->reg_vss))
- regulator_put(st->reg_vss);
-
error_disable_reg_pos:
if (!IS_ERR(st->reg_vdd))
regulator_disable(st->reg_vdd);
-error_put_reg_pos:
- if (!IS_ERR(st->reg_vdd))
- regulator_put(st->reg_vdd);
- iio_device_free(indio_dev);
-error_ret:
-
return ret;
}
@@ -450,16 +438,11 @@ static int ad5791_remove(struct spi_device *spi)
struct ad5791_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- if (!IS_ERR(st->reg_vdd)) {
+ if (!IS_ERR(st->reg_vdd))
regulator_disable(st->reg_vdd);
- regulator_put(st->reg_vdd);
- }
- if (!IS_ERR(st->reg_vss)) {
+ if (!IS_ERR(st->reg_vss))
regulator_disable(st->reg_vss);
- regulator_put(st->reg_vss);
- }
- iio_device_free(indio_dev);
return 0;
}