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[media] cx23885: Replace memcpy with struct assignment

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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>
Reviewed-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ezequiel Garcia 2012-10-23 15:57:20 -03:00 • committed by Mauro Carvalho Chehab
parent b52377475a
commit 3618acab2c
2 changed files with 3 additions and 6 deletions
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3
drivers/media/pci/cx23885/cx23885-video.c
View file

@ -1819,8 +1819,7 @@ int cx23885_video_register(struct cx23885_dev *dev)
spin_lock_init(&dev->slock); spin_lock_init(&dev->slock);
/* Initialize VBI template */ /* Initialize VBI template */
memcpy(&cx23885_vbi_template, &cx23885_video_template, cx23885_vbi_template = cx23885_video_template;
sizeof(cx23885_vbi_template));
strcpy(cx23885_vbi_template.name, "cx23885-vbi"); strcpy(cx23885_vbi_template.name, "cx23885-vbi");
dev->tvnorm = cx23885_video_template.current_norm; dev->tvnorm = cx23885_video_template.current_norm;

6
drivers/media/pci/cx23885/cx23888-ir.c
View file

@ -1237,13 +1237,11 @@ int cx23888_ir_probe(struct cx23885_dev *dev)
cx23888_ir_write4(dev, CX23888_IR_IRQEN_REG, 0); cx23888_ir_write4(dev, CX23888_IR_IRQEN_REG, 0);
mutex_init(&state->rx_params_lock); mutex_init(&state->rx_params_lock);
memcpy(&default_params, &default_rx_params, default_params = default_rx_params;
sizeof(struct v4l2_subdev_ir_parameters));
v4l2_subdev_call(sd, ir, rx_s_parameters, &default_params); v4l2_subdev_call(sd, ir, rx_s_parameters, &default_params);
mutex_init(&state->tx_params_lock); mutex_init(&state->tx_params_lock);
memcpy(&default_params, &default_tx_params, default_params = default_tx_params;
sizeof(struct v4l2_subdev_ir_parameters));
v4l2_subdev_call(sd, ir, tx_s_parameters, &default_params); v4l2_subdev_call(sd, ir, tx_s_parameters, &default_params);
} else { } else {
kfifo_free(&state->rx_kfifo); kfifo_free(&state->rx_kfifo);