diff options
| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-10-23 20:57:09 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-27 21:45:53 +0100 |
| commit | 5338c16905ed7e8145861e1dacdd4eadce18f2b9 (patch) | |
| tree | 80d3a7ff080216b97ee362cc9fd9b0c244226a37 | |
| parent | [media] pwc: Replace memcpy with struct assignment (diff) | |
| download | linux-5338c16905ed7e8145861e1dacdd4eadce18f2b9.tar.xz linux-5338c16905ed7e8145861e1dacdd4eadce18f2b9.zip | |
[media] pvrusb2: 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>
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-encoder.c | 3 | ||||
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c | 4 | ||||
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-v4l2.c | 2 |
3 files changed, 4 insertions, 5 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-encoder.c b/drivers/media/usb/pvrusb2/pvrusb2-encoder.c index e046fdaec5ae..f7702aeeda3f 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-encoder.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-encoder.c @@ -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; diff --git a/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c index 9ab596c78a4e..b5e929f1bf82 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c @@ -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; diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c index 6930676051e7..34c3b6e80e86 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c @@ -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; { |