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Subject[PATCH 16/23] cx88: 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>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
---
drivers/media/pci/cx88/cx88-cards.c | 2 +-
drivers/media/pci/cx88/cx88-i2c.c | 3 +--
drivers/media/pci/cx88/cx88-vp3054-i2c.c | 3 +--
3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-cards.c b/drivers/media/pci/cx88/cx88-cards.c
index 0c25524..e2e0b8f 100644
--- a/drivers/media/pci/cx88/cx88-cards.c
+++ b/drivers/media/pci/cx88/cx88-cards.c
@@ -3743,7 +3743,7 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
cx88_card_list(core, pci);
}

- memcpy(&core->board, &cx88_boards[core->boardnr], sizeof(core->board));
+ core->board = cx88_boards[core->boardnr];

if (!core->board.num_frontends && (core->board.mpeg & CX88_MPEG_DVB))
core->board.num_frontends = 1;
diff --git a/drivers/media/pci/cx88/cx88-i2c.c b/drivers/media/pci/cx88/cx88-i2c.c
index de0f1af..cf2d696 100644
--- a/drivers/media/pci/cx88/cx88-i2c.c
+++ b/drivers/media/pci/cx88/cx88-i2c.c
@@ -139,8 +139,7 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci)
if (i2c_udelay<5)
i2c_udelay=5;

- memcpy(&core->i2c_algo, &cx8800_i2c_algo_template,
- sizeof(core->i2c_algo));
+ core->i2c_algo = cx8800_i2c_algo_template;


core->i2c_adap.dev.parent = &pci->dev;
diff --git a/drivers/media/pci/cx88/cx88-vp3054-i2c.c b/drivers/media/pci/cx88/cx88-vp3054-i2c.c
index d77f8ec..deede6e 100644
--- a/drivers/media/pci/cx88/cx88-vp3054-i2c.c
+++ b/drivers/media/pci/cx88/cx88-vp3054-i2c.c
@@ -118,8 +118,7 @@ int vp3054_i2c_probe(struct cx8802_dev *dev)
return -ENOMEM;
dev->vp3054 = vp3054_i2c;

- memcpy(&vp3054_i2c->algo, &vp3054_i2c_algo_template,
- sizeof(vp3054_i2c->algo));
+ vp3054_i2c->algo = vp3054_i2c_algo_template;

vp3054_i2c->adap.dev.parent = &dev->pci->dev;
strlcpy(vp3054_i2c->adap.name, core->name,
--
1.7.4.4


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