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Message-Id: <1351022246-8201-3-git-send-email-elezegarcia@gmail.com>
Date: Tue, 23 Oct 2012 16:57:06 -0300
From: Ezequiel Garcia <elezegarcia@...il.com>
To: <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>
Cc: Julia.Lawall@...6.fr, kernel-janitors@...r.kernel.org,
Ezequiel Garcia <elezegarcia@...il.com>,
Peter Senna Tschudin <peter.senna@...il.com>
Subject: [PATCH 03/23] usbvision: Replace memcpy with struct assignment
This kind of memcpy() is error-prone. Its replacement with a struct
assignment is prefered because it's type-safe and much easier to read.
Found by coccinelle. Hand patched and reviewed.
Tested by compilation only.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier struct_name;
struct struct_name to;
struct struct_name from;
expression E;
@@
-memcpy(&(to), &(from), E);
+to = from;
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@...il.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@...il.com>
---
drivers/media/usb/usbvision/usbvision-i2c.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/usbvision/usbvision-i2c.c b/drivers/media/usb/usbvision/usbvision-i2c.c
index 89fec02..ba262a3 100644
--- a/drivers/media/usb/usbvision/usbvision-i2c.c
+++ b/drivers/media/usb/usbvision/usbvision-i2c.c
@@ -189,8 +189,7 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
if (usbvision->registered_i2c)
return 0;
- memcpy(&usbvision->i2c_adap, &i2c_adap_template,
- sizeof(struct i2c_adapter));
+ usbvision->i2c_adap = i2c_adap_template;
sprintf(usbvision->i2c_adap.name, "%s-%d-%s", i2c_adap_template.name,
usbvision->dev->bus->busnum, usbvision->dev->devpath);
--
1.7.4.4
--
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