linux-kernel - [PATCH 2/2] staging: iio: adc: ad7192: Report error directly in ad7192

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Message-ID: <20190315111425.14275-2-mircea.caprioru@analog.com>
Date:   Fri, 15 Mar 2019 13:14:25 +0200
From:   Mircea Caprioru <mircea.caprioru@...log.com>
To:     <jic23@...nel.org>
CC:     <Michael.Hennerich@...log.com>, <lars@...afoo.de>,
        <gregkh@...uxfoundation.org>, <linux-kernel@...r.kernel.org>,
        <linux-iio@...r.kernel.org>,
        Mircea Caprioru <mircea.caprioru@...log.com>
Subject: [PATCH 2/2] staging: iio: adc: ad7192: Report error directly in ad7192_setup

This patch removes the goto out statement thus ensuring that an error is
report as soon as it occurs. This gives more information and improves
readability.

Signed-off-by: Mircea Caprioru <mircea.caprioru@...log.com>
---
 drivers/staging/iio/adc/ad7192.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index ebab75bdeed7..27f962b8c4ef 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -236,13 +236,13 @@ static int ad7192_setup(struct ad7192_state *st,
 	/* reset the serial interface */
 	ret = ad_sd_reset(&st->sd, 48);
 	if (ret < 0)
-		goto out;
+		return ret;
 	usleep_range(500, 1000); /* Wait for at least 500us */
 
 	/* write/read test for device presence */
 	ret = ad_sd_read_reg(&st->sd, AD7192_REG_ID, 1, &id);
 	if (ret)
-		goto out;
+		return ret;
 
 	id &= AD7192_ID_MASK;
 
@@ -310,15 +310,15 @@ static int ad7192_setup(struct ad7192_state *st,
 
 	ret = ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 	if (ret)
-		goto out;
+		return ret;
 
 	ret = ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
 	if (ret)
-		goto out;
+		return ret;
 
 	ret = ad7192_calibrate_all(st);
 	if (ret)
-		goto out;
+		return ret;
 
 	/* Populate available ADC input ranges */
 	for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++) {
@@ -332,9 +332,6 @@ static int ad7192_setup(struct ad7192_state *st,
 	}
 
 	return 0;
-out:
-	dev_err(&st->sd.spi->dev, "setup failed\n");
-	return ret;
 }
 
 static ssize_t
-- 
2.17.1