| Message ID | 1472767994-26269-7-git-send-email-Julia.Lawall@lip6.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c index 5925b71..f2c0709 100644 --- a/sound/pci/bt87x.c +++ b/sound/pci/bt87x.c @@ -550,7 +550,7 @@ static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); } -static struct snd_pcm_ops snd_bt87x_pcm_ops = { +static const struct snd_pcm_ops snd_bt87x_pcm_ops = { .open = snd_bt87x_pcm_open, .close = snd_bt87x_close, .ioctl = snd_pcm_lib_ioctl,
Check for snd_pcm_ops structures that are only stored in the ops field of a snd_soc_platform_driver structure or passed as the third argument to snd_pcm_set_ops. The corresponding field or parameter is declared const, so snd_pcm_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct snd_pcm_ops i@p = { ... }; @ok1@ identifier r.i; struct snd_soc_platform_driver e; position p; @@ e.ops = &i@p; @ok2@ identifier r.i; expression e1, e2; position p; @@ snd_pcm_set_ops(e1, e2, &i@p) @bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; struct snd_pcm_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct snd_pcm_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> --- sound/pci/bt87x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)