linux-kernel - [PATCH 1/1] staging: iio: cdc: fix improper return value

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Date:   Sat,  3 Dec 2016 21:44:30 +0800
From:   Pan Bian <bianpan201602@....com>
To:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, Pan Bian <bianpan2016@....com>
Subject: [PATCH 1/1] staging: iio: cdc: fix improper return value

From: Pan Bian <bianpan2016@....com>

At the end of function ad7150_write_event_config(), directly returns 0.
As a result, the errors will be ignored by the callers. It may be better 
to return variable "ret".

Signed-off-by: Pan Bian <bianpan2016@....com>
---
 drivers/staging/iio/cdc/ad7150.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index 5578a07..50a5b0c2 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -274,7 +274,7 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
 error_ret:
 	mutex_unlock(&chip->state_lock);
 
-	return 0;
+	return ret;
 }
 
 static int ad7150_read_event_value(struct iio_dev *indio_dev,
-- 
1.9.1