linux-kernel - [PATCH v3 4/4] Staging: iio: adis16209: Use sign

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <a2029d242df63f82ca791c99c86963ffeabc849d.1520164945.git.shreeya.patel23498@gmail.com>
Date:   Sun,  4 Mar 2018 18:15:06 +0530
From:   Shreeya Patel <shreeya.patel23498@...il.com>
To:     lars@...afoo.de, Michael.Hennerich@...log.com, jic23@...nel.org,
        knaack.h@....de, pmeerw@...erw.net, gregkh@...uxfoundation.org,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, daniel.baluta@...il.com
Cc:     Shreeya Patel <shreeya.patel23498@...il.com>
Subject: [PATCH v3 4/4] Staging: iio: adis16209: Use sign_extend32 function

Use sign_extend32 function instead of manually coding
it.

Signed-off-by: Shreeya Patel <shreeya.patel23498@...il.com>
---

Changes in v3
  -After split patch.

 drivers/staging/iio/accel/adis16209.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/iio/accel/adis16209.c b/drivers/staging/iio/accel/adis16209.c
index 9cb1ce0..a8453bf 100644
--- a/drivers/staging/iio/accel/adis16209.c
+++ b/drivers/staging/iio/accel/adis16209.c
@@ -212,9 +212,8 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 		ret = adis_read_reg_16(st, addr, &val16);
 		if (ret)
 			return ret;
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
+
+		*val = sign_extend32(val16, bits - 1);
 		return IIO_VAL_INT;
 	}
 	return -EINVAL;
-- 
2.7.4