linux-kernel - [PATCH] staging: iio: ad2s1210: remove redundant assignment to variable negative

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Message-Id: <20220418134603.81336-1-colin.i.king@gmail.com>
Date:   Mon, 18 Apr 2022 14:46:03 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-iio@...r.kernel.org, linux-staging@...ts.linux.dev
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: [PATCH] staging: iio: ad2s1210: remove redundant assignment to variable negative

Variable negative is being assigned a value that is never read, it is
being re-assigned later. The assignment is redundant and can be removed.

Cleans up clang scan build warning:
drivers/staging/iio/resolver/ad2s1210.c:502:3: warning: Value stored
to 'negative' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/staging/iio/resolver/ad2s1210.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index 74adb82f37c3..c0b2716d0511 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -499,7 +499,6 @@ static int ad2s1210_read_raw(struct iio_dev *indio_dev,
 		ret = IIO_VAL_INT;
 		break;
 	case IIO_ANGL_VEL:
-		negative = st->rx[0] & 0x80;
 		vel = be16_to_cpup((__be16 *)st->rx);
 		vel >>= 16 - st->resolution;
 		if (vel & 0x8000) {
-- 
2.35.1