linux-kernel - [PATCH v3 08/27] i2c: busses: remove memset after dmam_alloc

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>] [day] [month] [year] [list]

Message-Id: <20190702075744.23881-1-huangfq.daxian@gmail.com>
Date:   Tue,  2 Jul 2019 15:57:44 +0800
From:   Fuqian Huang <huangfq.daxian@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linux-kernel@...r.kernel.org,
        Fuqian Huang <huangfq.daxian@...il.com>
Subject: [PATCH v3 08/27] i2c: busses: remove memset after dmam_alloc_coherent

In commit 518a2f1925c3
("dma-mapping: zero memory returned from dma_alloc_*"),
dmam_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@...il.com>
---
Changes in v3:
  - Use actual commit rather than the merge commit in the commit message

 drivers/i2c/busses/i2c-ismt.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 02d23edb2fb1..2f95e25a10f7 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -781,8 +781,6 @@ static int ismt_dev_init(struct ismt_priv *priv)
 	if (!priv->hw)
 		return -ENOMEM;
 
-	memset(priv->hw, 0, (ISMT_DESC_ENTRIES * sizeof(struct ismt_desc)));
-
 	priv->head = 0;
 	init_completion(&priv->cmp);
 
-- 
2.11.0