media: cx18: constify videobuf_queue_ops structures

These videobuf_queue_ops structures are only passed as the second
argument to videobuf_queue_vmalloc_init, which is declared as const.
Thus the videobuf_queue_ops structures themselves can be const.

Done with the help of Coccinelle.

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct videobuf_queue_ops i@p = { ... };

@ok1@
identifier r.i;
expression e1;
position p;
@@
videobuf_queue_vmalloc_init(e1,&i@p,...)

@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct videobuf_queue_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct videobuf_queue_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c
index 3c45e007153074c179cb8e2b4ba8083dfd04e801..81d06c1a7796906ee53a6e00be00cfbbb94050de 100644 (file)
--- a/drivers/media/pci/cx18/cx18-streams.c
+++ b/drivers/media/pci/cx18/cx18-streams.c
@@ -240,7 +240,7 @@ static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
        list_add_tail(&buf->vb.queue, &s->vb_capture);
 }
 
-static struct videobuf_queue_ops cx18_videobuf_qops = {
+static const struct videobuf_queue_ops cx18_videobuf_qops = {
        .buf_setup    = buffer_setup,
        .buf_prepare  = buffer_prepare,
        .buf_queue    = buffer_queue,