[PATCH V6 5/7] iio: adc: Update return value checks

From: Jishnu Prakash <jprakash@codeaurora.org>
To: agross@kernel.org, bjorn.andersson@linaro.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	mka@chromium.org, linus.walleij@linaro.org,
	Jonathan.Cameron@huawei.com, andy.shevchenko@gmail.com,
	amit.kucheria@verdurent.com, smohanad@codeaurora.org,
	kgunda@codeaurora.org, aghayal@codeaurora.org,
	Jonathan Cameron <jic23@kernel.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	linux-arm-msm@vger.kernel.org, linux-iio@vger.kernel.org
Cc: linux-arm-msm-owner@vger.kernel.org,
	Jishnu Prakash <jprakash@codeaurora.org>
Subject: [PATCH V6 5/7] iio: adc: Update return value checks
Date: Thu, 28 May 2020 22:24:27 +0530	[thread overview]
Message-ID: <1590684869-15400-6-git-send-email-jprakash@codeaurora.org> (raw)
In-Reply-To: <1590684869-15400-1-git-send-email-jprakash@codeaurora.org>

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

Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
---
 drivers/iio/adc/qcom-spmi-adc5.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index dcc7599..3022313 100644
--- 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;
 		}
-- 
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a Linux Foundation Collaborative Project

