linux-kernel - [PATCH 3.2 129/147] iio: staging: ad7298_ring: Fix maybe-uninitialized warning

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Date:   Mon, 06 Nov 2017 23:03:07 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Fengguang Wu" <fengguang.wu@...el.com>,
        "Michael Hennerich" <michael.hennerich@...log.com>,
        "Jonathan Cameron" <jic23@...nel.org>
Subject: [PATCH 3.2 129/147] iio: staging: ad7298_ring: Fix
 maybe-uninitialized warning

3.2.95-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Michael Hennerich <michael.hennerich@...log.com>

commit dfffd0d65fdf16d034681716dcbea74776f62e40 upstream.

drivers/staging/iio/adc/ad7298_ring.c:97:37: warning: 'time_ns' may
be used uninitialized in this function [-Wmaybe-uninitialized]

Reported-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/staging/iio/adc/ad7298_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -120,7 +120,7 @@ static irqreturn_t ad7298_trigger_handle
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7298_state *st = iio_priv(indio_dev);
 	struct iio_buffer *ring = indio_dev->buffer;
-	s64 time_ns;
+	s64 time_ns = 0;
 	__u16 buf[16];
 	int b_sent, i;