iio: adc: Update return value checks

Clean up some return value checks to make code more compact.

Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jishnu Prakash
2020-05-28 22:24:27 +05:30
committed by Jonathan Cameron
parent 082111e559
commit 35fbb7f00d

View File

@@ -301,7 +301,7 @@ static int adc5_configure(struct adc5_chip *adc,
/* Read registers 0x42 through 0x46 */ /* Read registers 0x42 through 0x46 */
ret = adc5_read(adc, ADC5_USR_DIG_PARAM, buf, sizeof(buf)); ret = adc5_read(adc, ADC5_USR_DIG_PARAM, buf, sizeof(buf));
if (ret < 0) if (ret)
return ret; return ret;
/* Digital param selection */ /* Digital param selection */
@@ -388,7 +388,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
if (adc->poll_eoc) { if (adc->poll_eoc) {
ret = adc5_poll_wait_eoc(adc); ret = adc5_poll_wait_eoc(adc);
if (ret < 0) { if (ret) {
pr_err("EOC bit not set\n"); pr_err("EOC bit not set\n");
goto unlock; goto unlock;
} }
@@ -398,7 +398,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
if (!ret) { if (!ret) {
pr_debug("Did not get completion timeout.\n"); pr_debug("Did not get completion timeout.\n");
ret = adc5_poll_wait_eoc(adc); ret = adc5_poll_wait_eoc(adc);
if (ret < 0) { if (ret) {
pr_err("EOC bit not set\n"); pr_err("EOC bit not set\n");
goto unlock; goto unlock;
} }
@@ -516,8 +516,6 @@ static int adc5_read_raw(struct iio_dev *indio_dev,
default: default:
return -EINVAL; return -EINVAL;
} }
return 0;
} }
static int adc7_read_raw(struct iio_dev *indio_dev, static int adc7_read_raw(struct iio_dev *indio_dev,
@@ -761,7 +759,7 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
ret = adc5_read(adc, ADC5_USR_REVISION1, dig_version, ret = adc5_read(adc, ADC5_USR_REVISION1, dig_version,
sizeof(dig_version)); sizeof(dig_version));
if (ret < 0) { if (ret) {
dev_err(dev, "Invalid dig version read %d\n", ret); dev_err(dev, "Invalid dig version read %d\n", ret);
return ret; return ret;
} }