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From: Alexandru Ardelean <alexandru.ardelean@analog.com>
To: <linux-iio@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <lars@metafoo.de>, <Michael.Hennerich@analog.com>,
	<jic23@kernel.org>, <dragos.bogdan@analog.com>,
	Alexandru Ardelean <alexandru.ardelean@analog.com>
Subject: [PATCH 09/10] iio: imu: adis: assign read val in debugfs hook only if op successful
Date: Fri, 1 Nov 2019 11:35:04 +0200	[thread overview]
Message-ID: <20191101093505.9408-10-alexandru.ardelean@analog.com> (raw)
In-Reply-To: <20191101093505.9408-1-alexandru.ardelean@analog.com>

This was also caught by the `-Wmaybe-uninitialized` warning, which
(ironically as-is) it makes quite a lot of sense to do for this.

Fixes: 78026a6fde8f7 ("iio:imu:adis: Add debugfs register access support")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
 drivers/iio/imu/adis.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c
index dc2f9e061d98..85de565a4e80 100644
--- a/drivers/iio/imu/adis.c
+++ b/drivers/iio/imu/adis.c
@@ -229,7 +229,8 @@ int adis_debugfs_reg_access(struct iio_dev *indio_dev,
 		int ret;
 
 		ret = adis_read_reg_16(adis, reg, &val16);
-		*readval = val16;
+		if (ret == 0)
+			*readval = val16;
 
 		return ret;
 	} else {
-- 
2.20.1


  parent reply	other threads:[~2019-11-01  9:36 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-01  9:34 [PATCH 00/10] iio: adis: cleanups and fixes Alexandru Ardelean
2019-11-01  9:34 ` [PATCH 01/10] iio: gyro: adis16136: check ret val for non-zero vs less-than-zero Alexandru Ardelean
2019-11-03 10:15   ` Jonathan Cameron
2019-11-01  9:34 ` [PATCH 02/10] iio: imu: adis16400: " Alexandru Ardelean
2019-11-03 10:21   ` Jonathan Cameron
2019-11-04  7:40     ` Ardelean, Alexandru
2019-11-01  9:34 ` [PATCH 03/10] iio: imu: adis16460: " Alexandru Ardelean
2019-11-03 10:25   ` Jonathan Cameron
2019-11-01  9:34 ` [PATCH 04/10] iio: imu: adis16480: " Alexandru Ardelean
2019-11-03 10:27   ` Jonathan Cameron
2019-11-01  9:35 ` [PATCH 05/10] iio: imu: adis: " Alexandru Ardelean
2019-11-03 10:31   ` Jonathan Cameron
2019-11-01  9:35 ` [PATCH 06/10] iio: imu: adis16480: fix indentation of return statement Alexandru Ardelean
2019-11-03 10:35   ` Jonathan Cameron
2019-11-01  9:35 ` [PATCH 07/10] iio: imu: adis16480: prefer `unsigned int` over `unsigned` Alexandru Ardelean
2019-11-03 10:36   ` Jonathan Cameron
2019-11-01  9:35 ` [PATCH 08/10] iio: imu: adis16480: assign bias value only if operation succeeded Alexandru Ardelean
2019-11-03 10:41   ` Jonathan Cameron
2019-11-04  8:50     ` Ardelean, Alexandru
2019-11-01  9:35 ` Alexandru Ardelean [this message]
2019-11-03 10:46   ` [PATCH 09/10] iio: imu: adis: assign read val in debugfs hook only if op successful Jonathan Cameron
2019-11-01  9:35 ` [PATCH 10/10] iio: imu: adis: assign value only if return code zero in read funcs Alexandru Ardelean
2019-11-03 10:49   ` Jonathan Cameron

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