diff options
| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-10-23 15:57:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-27 18:44:46 -0200 |
| commit | 5869bb39f8e1f671746dcb5f070e3b1c38b23e5c (patch) | |
| tree | 197aa51ef5ee694c1427862740b992296993d03b | |
| parent | 8fe392b8fdb93ced86e1661bff91af95ee234cf9 (diff) | |
[media] sn9c102: 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/sn9c102/sn9c102_core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/usb/sn9c102/sn9c102_core.c b/drivers/media/usb/sn9c102/sn9c102_core.c index 6bda81aebf87..c957e9aa6077 100644 --- a/drivers/media/usb/sn9c102/sn9c102_core.c +++ b/drivers/media/usb/sn9c102/sn9c102_core.c @@ -2827,7 +2827,7 @@ sn9c102_vidioc_querybuf(struct sn9c102_device* cam, void __user * arg) b.index >= cam->nbuffers || cam->io != IO_MMAP) return -EINVAL; - memcpy(&b, &cam->frame[b.index].buf, sizeof(b)); + b = cam->frame[b.index].buf; if (cam->frame[b.index].vma_use_count) b.flags |= V4L2_BUF_FLAG_MAPPED; @@ -2930,7 +2930,7 @@ sn9c102_vidioc_dqbuf(struct sn9c102_device* cam, struct file* filp, f->state = F_UNUSED; - memcpy(&b, &f->buf, sizeof(b)); + b = f->buf; if (f->vma_use_count) b.flags |= V4L2_BUF_FLAG_MAPPED; |