linux-kernel - [PATCH 3.18 61/67] staging: iio: cdc: fix improper return value

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Message-Id: <20171128100427.744129406@linuxfoundation.org>
Date:   Tue, 28 Nov 2017 11:20:00 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pan Bian <bianpan2016@....com>,
        Jonathan Cameron <jic23@...nel.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 3.18 61/67] staging: iio: cdc: fix improper return value

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

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


[ Upstream commit 91ca1a8c584f55857b1f6ab20a1d3a1ce7a559bb ]

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>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/staging/iio/cdc/ad7150.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -275,7 +275,7 @@ static int ad7150_write_event_config(str
 error_ret:
 	mutex_unlock(&chip->state_lock);
 
-	return 0;
+	return ret;
 }
 
 static int ad7150_read_event_value(struct iio_dev *indio_dev,