linux-kernel - [PATCH 15/18] Drivers: media: Use kmemdup instead of kmalloc + memcpy

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Message-Id: <1401117687-28911-16-git-send-email-benoit.taine@lip6.fr>
Date:	Mon, 26 May 2014 17:21:24 +0200
From:	Benoit Taine <benoit.taine@...6.fr>
To:	Guennadi Liakhovetski <g.liakhovetski@....de>
Cc:	benoit.taine@...6.fr, Mauro Carvalho Chehab <m.chehab@...sung.com>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH 15/18] Drivers: media: Use kmemdup instead of kmalloc + memcpy

This issue was reported by coccicheck using the semantic patch 
at scripts/coccinelle/api/memdup.cocci

Signed-off-by: Benoit Taine <benoit.taine@...6.fr>
---
Tested by compilation without errors.

 drivers/media/platform/soc_camera/soc_camera.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index c8549bf..8646c11 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1346,13 +1346,11 @@ static int soc_camera_i2c_init(struct soc_camera_device *icd,
 		return -ENODEV;
 	}
 
-	ssdd = kzalloc(sizeof(*ssdd), GFP_KERNEL);
+	ssdd = kmemdup(&sdesc->subdev_desc, sizeof(*ssdd), GFP_KERNEL);
 	if (!ssdd) {
 		ret = -ENOMEM;
 		goto ealloc;
 	}
-
-	memcpy(ssdd, &sdesc->subdev_desc, sizeof(*ssdd));
 	/*
 	 * In synchronous case we request regulators ourselves in
 	 * soc_camera_pdrv_probe(), make sure the subdevice driver doesn't try

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