From: Ezequiel Garcia <elezegarcia@gmail.com>
Date: Tue, 23 Oct 2012 18:57:12 +0000 (-0300)
Subject: [media] zr36067: Replace memcpy with struct assignment
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=37320d7bc0180979d49de21b90f30a97f57b3ee1;p=openwrt%2Fstaging%2Fblogic.git

[media] zr36067: 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@gmail.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/pci/zoran/zoran_card.c b/drivers/media/pci/zoran/zoran_card.c
index fffc54b452c8..cea325d3e530 100644
--- a/drivers/media/pci/zoran/zoran_card.c
+++ b/drivers/media/pci/zoran/zoran_card.c
@@ -708,8 +708,7 @@ static const struct i2c_algo_bit_data zoran_i2c_bit_data_template = {
 static int
 zoran_register_i2c (struct zoran *zr)
 {
-	memcpy(&zr->i2c_algo, &zoran_i2c_bit_data_template,
-	       sizeof(struct i2c_algo_bit_data));
+	zr->i2c_algo = zoran_i2c_bit_data_template;
 	zr->i2c_algo.data = zr;
 	strlcpy(zr->i2c_adapter.name, ZR_DEVNAME(zr),
 		sizeof(zr->i2c_adapter.name));