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>

diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index dcc7599..3022313 100644 (file)
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -301,7 +301,7 @@ static int adc5_configure(struct adc5_chip *adc,
 
        /* Read registers 0x42 through 0x46 */
        ret = adc5_read(adc, ADC5_USR_DIG_PARAM, buf, sizeof(buf));
-       if (ret < 0)
+       if (ret)
                return ret;
 
        /* Digital param selection */
@@ -388,7 +388,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
 
        if (adc->poll_eoc) {
                ret = adc5_poll_wait_eoc(adc);
-               if (ret < 0) {
+               if (ret) {
                        pr_err("EOC bit not set\n");
                        goto unlock;
                }
@@ -398,7 +398,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
                if (!ret) {
                        pr_debug("Did not get completion timeout.\n");
                        ret = adc5_poll_wait_eoc(adc);
-                       if (ret < 0) {
+                       if (ret) {
                                pr_err("EOC bit not set\n");
                                goto unlock;
                        }
@@ -516,8 +516,6 @@ static int adc5_read_raw(struct iio_dev *indio_dev,
        default:
                return -EINVAL;
        }
-
-       return 0;
 }
 
 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,
                                                        sizeof(dig_version));
-               if (ret < 0) {
+               if (ret) {
                        dev_err(dev, "Invalid dig version read %d\n", ret);
                        return ret;
                }