ALSA: pci: constify snd_kcontrol_new structures

Declare snd_kcontrol_new structures as const as they are only passed as
an argument to the function snd_ctl_new1. This argument is of type
const, so snd_kcontrol_new structures having the same property can be
made const too.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct snd_kcontrol_new i@p = {...};

@ok1@
identifier r1.i;
position p;
expression e1;
@@
snd_ctl_new1(&i@p,e1)

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct snd_kcontrol_new i;

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 32842734ada6..77a4413f4564 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -1112,7 +1112,7 @@ static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
+static const struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
 {
 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name =		"Analog/Digital Output Jack",
@@ -1171,7 +1171,7 @@ static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
+static const struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
 {
 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
 	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
@@ -1181,7 +1181,7 @@ static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
 	.get =          snd_emu10k1x_spdif_get_mask
 };
 
-static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
+static const struct snd_kcontrol_new snd_emu10k1x_spdif_control =
 {
 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
 	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),