linux-kernel - [PATCH] adis16080: fix compiler -Wuninitialized

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Date:	Tue, 14 Feb 2012 15:35:36 +0100
From:	Danny Kukawka <danny.kukawka@...ect.de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Danny Kukawka <dkukawka@...e.de>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] adis16080: fix compiler -Wuninitialized

Fix for:
drivers/staging/iio/gyro/adis16080_core.c: In function
  ‘adis16080_read_raw’:
drivers/staging/iio/gyro/adis16080_core.c:99:8: warning: ‘ut’
  may be used uninitialized in this function [-Wuninitialized]

Initialize ut and change error handling from adis16080_read_raw().

Signed-off-by: Danny Kukawka <danny.kukawka@...ect.de>
---
 drivers/staging/iio/gyro/adis16080_core.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/iio/gyro/adis16080_core.c b/drivers/staging/iio/gyro/adis16080_core.c
index 1815490..e0b2a29 100644
--- a/drivers/staging/iio/gyro/adis16080_core.c
+++ b/drivers/staging/iio/gyro/adis16080_core.c
@@ -82,7 +82,7 @@ static int adis16080_read_raw(struct iio_dev *indio_dev,
 			     long mask)
 {
 	int ret = -EINVAL;
-	u16 ut;
+	u16 ut = 0;
 	/* Take the iio_dev status lock */
 
 	mutex_lock(&indio_dev->mlock);
@@ -94,7 +94,7 @@ static int adis16080_read_raw(struct iio_dev *indio_dev,
 		if (ret < 0)
 			break;
 		ret = adis16080_spi_read(indio_dev, &ut);
-		if (ret < 0)
+		if (ret)
 			break;
 		*val = ut;
 		ret = IIO_VAL_INT;
-- 
1.7.7.3

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