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Subject[PATCH 15/23] ivtv: Replace memcpy with struct assignment
Date
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>

Cc: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
---
drivers/media/pci/ivtv/ivtv-i2c.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/media/pci/ivtv/ivtv-i2c.c b/drivers/media/pci/ivtv/ivtv-i2c.c
index d47f41a..27a8466 100644
--- a/drivers/media/pci/ivtv/ivtv-i2c.c
+++ b/drivers/media/pci/ivtv/ivtv-i2c.c
@@ -719,13 +719,10 @@ int init_ivtv_i2c(struct ivtv *itv)
return -ENODEV;
}
if (itv->options.newi2c > 0) {
- memcpy(&itv->i2c_adap, &ivtv_i2c_adap_hw_template,
- sizeof(struct i2c_adapter));
+ itv->i2c_adap = ivtv_i2c_adap_hw_template;
} else {
- memcpy(&itv->i2c_adap, &ivtv_i2c_adap_template,
- sizeof(struct i2c_adapter));
- memcpy(&itv->i2c_algo, &ivtv_i2c_algo_template,
- sizeof(struct i2c_algo_bit_data));
+ itv->i2c_adap = ivtv_i2c_adap_template;
+ itv->i2c_algo = ivtv_i2c_algo_template;
}
itv->i2c_algo.udelay = itv->options.i2c_clock_period / 2;
itv->i2c_algo.data = itv;
@@ -735,8 +732,7 @@ int init_ivtv_i2c(struct ivtv *itv)
itv->instance);
i2c_set_adapdata(&itv->i2c_adap, &itv->v4l2_dev);

- memcpy(&itv->i2c_client, &ivtv_i2c_client_template,
- sizeof(struct i2c_client));
+ itv->i2c_client = ivtv_i2c_client_template;
itv->i2c_client.adapter = &itv->i2c_adap;
itv->i2c_adap.dev.parent = &itv->pdev->dev;

--
1.7.4.4


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