linux-kernel - [PATCH 2/2] sound: skl-topology: Use kmemdup to replace kzalloc + memcpy

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:   Sat, 8 Sep 2018 16:36:20 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <tiwai@...e.com>, <perex@...ex.cz>, <broonie@...nel.org>
CC:     <lgirdwood@...il.com>, <bgoswami@...eaurora.org>,
        <plai@...eaurora.org>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] sound: skl-topology: Use kmemdup to replace kzalloc + memcpy

kmemdup has implemented the function that kzalloc() + memcpy() will
do. and we prefer to kmemdup rather than the open coded implementation.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 sound/soc/intel/skylake/skl-topology.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 2620d77..52a9915 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -898,11 +898,10 @@ static int skl_tplg_set_module_bind_params(struct snd_soc_dapm_widget *w,
 			bc = (struct skl_algo_data *)sb->dobj.private;
 
 			if (bc->set_params == SKL_PARAM_BIND) {
-				params = kzalloc(bc->max, GFP_KERNEL);
+				params = kmemdup(bc->params, bc->max, GFP_KERNEL);
 				if (!params)
 					return -ENOMEM;
 
-				memcpy(params, bc->params, bc->max);
 				skl_fill_sink_instance_id(ctx, params, bc->max,
 								mconfig);
 
-- 
1.7.12.4