From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ezequiel Garcia Date: Tue, 23 Oct 2012 19:57:10 +0000 Subject: [PATCH 07/23] hdpvr: Replace memcpy with struct assignment Message-Id: <1351022246-8201-7-git-send-email-elezegarcia@gmail.com> List-Id: References: <1351022246-8201-1-git-send-email-elezegarcia@gmail.com> In-Reply-To: <1351022246-8201-1-git-send-email-elezegarcia@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Cc: Julia.Lawall@lip6.fr, kernel-janitors@vger.kernel.org, Ezequiel Garcia , Mike Isely , Peter Senna Tschudin 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/) // @@ identifier struct_name; struct struct_name to; struct struct_name from; expression E; @@ -memcpy(&(to), &(from), E); +to = from; // Cc: Mike Isely Signed-off-by: Peter Senna Tschudin Signed-off-by: Ezequiel Garcia --- drivers/media/usb/hdpvr/hdpvr-i2c.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/hdpvr/hdpvr-i2c.c b/drivers/media/usb/hdpvr/hdpvr-i2c.c index 82e819f..2df60bf 100644 --- a/drivers/media/usb/hdpvr/hdpvr-i2c.c +++ b/drivers/media/usb/hdpvr/hdpvr-i2c.c @@ -217,8 +217,7 @@ int hdpvr_register_i2c_adapter(struct hdpvr_device *dev) hdpvr_activate_ir(dev); - memcpy(&dev->i2c_adapter, &hdpvr_i2c_adapter_template, - sizeof(struct i2c_adapter)); + dev->i2c_adapter = hdpvr_i2c_adapter_template; dev->i2c_adapter.dev.parent = &dev->udev->dev; i2c_set_adapdata(&dev->i2c_adapter, dev); -- 1.7.4.4