ASoC: constify snd_soc_codec_driver structures

Check for snd_soc_codec_driver structures that are only passed to
snd_soc_register_codec or memcpy (2nd arg), for which the corresponding
parameters are declared const.  Declare as const snd_soc_codec_driver
structures that have these properties.

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_soc_codec_driver i@p = { ... };

@ok@
identifier r.i;
expression e1,e2,e3;
position p;
@@
(
snd_soc_register_codec(e1,&i@p,e2,e3)
|
memcpy(e1,&i@p,e2)
)

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm8991.c b/sound/soc/codecs/wm8991.c
index 5822d1008f07..984379040794 100644
--- a/sound/soc/codecs/wm8991.c
+++ b/sound/soc/codecs/wm8991.c
@@ -1232,7 +1232,7 @@ static struct snd_soc_dai_driver wm8991_dai = {
 	.ops = &wm8991_ops
 };
 
-static struct snd_soc_codec_driver soc_codec_dev_wm8991 = {
+static const struct snd_soc_codec_driver soc_codec_dev_wm8991 = {
 	.set_bias_level = wm8991_set_bias_level,
 	.suspend_bias_off = true,