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[media] pvrusb2: 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>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ezequiel Garcia 2012-10-23 15:57:09 -03:00 committed by Mauro Carvalho Chehab
parent 5c2edefed7
commit 5338c16905
3 changed files with 4 additions and 5 deletions
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3
drivers/media/usb/pvrusb2/pvrusb2-encoder.c
View file

@ -422,8 +422,7 @@ int pvr2_encoder_adjust(struct pvr2_hdw *hdw)
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"Error from cx2341x module code=%d",ret);
} else {
memcpy(&hdw->enc_cur_state,&hdw->enc_ctl_state,
sizeof(struct cx2341x_mpeg_params));
hdw->enc_cur_state = hdw->enc_ctl_state;
hdw->enc_cur_valid = !0;
}
return ret;

4
drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c
View file

@ -649,8 +649,8 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw)
}
// Configure the adapter and set up everything else related to it.
memcpy(&hdw->i2c_adap,&pvr2_i2c_adap_template,sizeof(hdw->i2c_adap));
memcpy(&hdw->i2c_algo,&pvr2_i2c_algo_template,sizeof(hdw->i2c_algo));
hdw->i2c_adap = pvr2_i2c_adap_template;
hdw->i2c_algo = pvr2_i2c_algo_template;
strlcpy(hdw->i2c_adap.name,hdw->name,sizeof(hdw->i2c_adap.name));
hdw->i2c_adap.dev.parent = &hdw->usb_dev->dev;
hdw->i2c_adap.algo = &hdw->i2c_algo;

2
drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
View file

@ -1339,7 +1339,7 @@ static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip,
return;
}
memcpy(&dip->devbase,&vdev_template,sizeof(vdev_template));
dip->devbase = vdev_template;
dip->devbase.release = pvr2_video_device_release;
dip->devbase.ioctl_ops = &pvr2_ioctl_ops;
{