linux-kernel - [PATCH 1/5] i2c: octeon,thunderx: Fix set SCL recovery function

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:   Wed, 21 Sep 2016 08:51:02 +0200
From:   Jan Glauber <jglauber@...ium.com>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
        Dmitry Bazhenov <dmitry.bazhenov@...iga.com>,
        Jan Glauber <jglauber@...ium.com>
Subject: [PATCH 1/5] i2c: octeon,thunderx: Fix set SCL recovery function

From: Dmitry Bazhenov <dmitry.bazhenov@...iga.com>

The set SCL recovery function unconditionally pulls the SCL line low.
Only pull SCL line low according to val parameter.

Signed-off-by: Dmitry Bazhenov <dmitry.bazhenov@...iga.com>
Signed-off-by: Jan Glauber <jglauber@...ium.com>
[Changed commit message]
---
 drivers/i2c/busses/i2c-octeon-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-octeon-core.c b/drivers/i2c/busses/i2c-octeon-core.c
index f45ea5e..f322242 100644
--- a/drivers/i2c/busses/i2c-octeon-core.c
+++ b/drivers/i2c/busses/i2c-octeon-core.c
@@ -767,7 +767,7 @@ static void octeon_i2c_set_scl(struct i2c_adapter *adap, int val)
 {
 	struct octeon_i2c *i2c = i2c_get_adapdata(adap);
 
-	octeon_i2c_write_int(i2c, TWSI_INT_SCL_OVR);
+	octeon_i2c_write_int(i2c, val ? 0 : TWSI_INT_SCL_OVR);
 }
 
 static int octeon_i2c_get_sda(struct i2c_adapter *adap)
-- 
1.9.1