From 5c8d8c0192385f448320f6b3bd00b3aaf68ab74f Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 7 Sep 2016 21:44:39 -0300 Subject: [media] pci: constify snd_pcm_ops structures 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/) // @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 = { ... }; // Signed-off-by: Julia Lawall Acked-by: Andrey Utkin Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/tw686x/tw686x-audio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media/pci/tw686x') diff --git a/drivers/media/pci/tw686x/tw686x-audio.c b/drivers/media/pci/tw686x/tw686x-audio.c index 96e444c49173..77190768622a 100644 --- a/drivers/media/pci/tw686x/tw686x-audio.c +++ b/drivers/media/pci/tw686x/tw686x-audio.c @@ -269,7 +269,7 @@ static snd_pcm_uframes_t tw686x_pcm_pointer(struct snd_pcm_substream *ss) return bytes_to_frames(ss->runtime, ac->ptr); } -static struct snd_pcm_ops tw686x_pcm_ops = { +static const struct snd_pcm_ops tw686x_pcm_ops = { .open = tw686x_pcm_open, .close = tw686x_pcm_close, .ioctl = snd_pcm_lib_ioctl, -- cgit v1.2.1