[PATCH] iio: adc: ina2xx: fix missing break statement

From: Colin King <colin.king@canonical.com>
To: "Jonathan Cameron" <jic23@kernel.org>,
	"Hartmut Knaack" <knaack.h@gmx.de>,
	"Lars-Peter Clausen" <lars@metafoo.de>,
	"Peter Meerwald-Stadler" <pmeerw@pmeerw.net>,
	"Stefan Brüns" <stefan.bruens@rwth-aachen.de>,
	linux-iio@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] iio: adc: ina2xx: fix missing break statement
Date: Mon,  8 Oct 2018 22:09:04 +0100	[thread overview]
Message-ID: <20181008210904.9362-1-colin.king@canonical.com> (raw)

From: Colin Ian King <colin.king@canonical.com>

The IIO_CHAN_INFO_SCALE case is missing a break statement and in
the unlikely event that chan->address is not matched in the nested
switch statement then the code falls through to the following
IIO_CHAN_INFO_HARDWAREGAIN case.  Fix this by adding the missing
break.   While we are fixing this, it's probably a good idea to
add in a break statement to the IIO_CHAN_INFO_HARDWAREGAIN case
too (this is a moot point).

Detected by CoverityScan, CID#1462408 ("Missing break in switch")

Fixes: ca6a2d86acae ("iio: adc: ina2xx: Allow setting Shunt Voltage PGA gain and Bus Voltage range")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/iio/adc/ina2xx-adc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
index d1239624187d..9bc5986780b9 100644
--- a/drivers/iio/adc/ina2xx-adc.c
+++ b/drivers/iio/adc/ina2xx-adc.c
@@ -250,6 +250,7 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev,
 			*val2 = chip->shunt_resistor_uohm;
 			return IIO_VAL_FRACTIONAL;
 		}
+		break;
 
 	case IIO_CHAN_INFO_HARDWAREGAIN:
 		switch (chan->address) {
@@ -262,6 +263,7 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev,
 			*val = chip->range_vbus == 32 ? 1 : 2;
 			return IIO_VAL_INT;
 		}
+		break;
 	}
 
 	return -EINVAL;
-- 
2.17.1

