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[5/5,media] zr364xx: constify videobuf_queue_ops structures

Message ID 1501848588-22628-6-git-send-email-Julia.Lawall@lip6.fr (mailing list archive)
State New, archived
Headers show

Commit Message

Julia Lawall Aug. 4, 2017, 12:09 p.m. UTC
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>

---
 drivers/media/usb/zr364xx/zr364xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/media/usb/zr364xx/zr364xx.c
index efdcd5b..24d5860 100644
--- a/drivers/media/usb/zr364xx/zr364xx.c
+++ b/drivers/media/usb/zr364xx/zr364xx.c
@@ -439,7 +439,7 @@  static void buffer_release(struct videobuf_queue *vq,
 	free_buffer(vq, buf);
 }
 
-static struct videobuf_queue_ops zr364xx_video_qops = {
+static const struct videobuf_queue_ops zr364xx_video_qops = {
 	.buf_setup = buffer_setup,
 	.buf_prepare = buffer_prepare,
 	.buf_queue = buffer_queue,