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, 13 insertions, 13 deletions

diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index 937071760bc4..d15ecf9febbf 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -1039,7 +1039,7 @@ static int snd_echo_output_gain_put(struct snd_kcontrol *kcontrol,
 
 #ifdef ECHOCARD_HAS_LINE_OUT_GAIN
 /* On the Mia this one controls the line-out volume */
-static struct snd_kcontrol_new snd_echo_line_output_gain = {
+static const struct snd_kcontrol_new snd_echo_line_output_gain = {
 	.name = "Line Playback Volume",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
@@ -1050,7 +1050,7 @@ static struct snd_kcontrol_new snd_echo_line_output_gain = {
 	.tlv = {.p = db_scale_output_gain},
 };
 #else
-static struct snd_kcontrol_new snd_echo_pcm_output_gain = {
+static const struct snd_kcontrol_new snd_echo_pcm_output_gain = {
 	.name = "PCM Playback Volume",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
@@ -1120,7 +1120,7 @@ static int snd_echo_input_gain_put(struct snd_kcontrol *kcontrol,
 
 static const DECLARE_TLV_DB_SCALE(db_scale_input_gain, -2500, 50, 0);
 
-static struct snd_kcontrol_new snd_echo_line_input_gain = {
+static const struct snd_kcontrol_new snd_echo_line_input_gain = {
 	.name = "Line Capture Volume",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
@@ -1184,7 +1184,7 @@ static int snd_echo_output_nominal_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_output_nominal_level = {
+static const struct snd_kcontrol_new snd_echo_output_nominal_level = {
 	.name = "Line Playback Switch (-10dBV)",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.info = snd_echo_output_nominal_info,
@@ -1250,7 +1250,7 @@ static int snd_echo_input_nominal_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_intput_nominal_level = {
+static const struct snd_kcontrol_new snd_echo_intput_nominal_level = {
 	.name = "Line Capture Switch (-10dBV)",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.info = snd_echo_input_nominal_info,
@@ -1477,7 +1477,7 @@ static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_digital_mode_switch = {
+static const struct snd_kcontrol_new snd_echo_digital_mode_switch = {
 	.name = "Digital mode Switch",
 	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
 	.info = snd_echo_digital_mode_info,
@@ -1527,7 +1527,7 @@ static int snd_echo_spdif_mode_put(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static struct snd_kcontrol_new snd_echo_spdif_mode_switch = {
+static const struct snd_kcontrol_new snd_echo_spdif_mode_switch = {
 	.name = "S/PDIF mode Switch",
 	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
 	.info = snd_echo_spdif_mode_info,
@@ -1600,7 +1600,7 @@ static int snd_echo_clock_source_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_clock_source_switch = {
+static const struct snd_kcontrol_new snd_echo_clock_source_switch = {
 	.name = "Sample Clock Source",
 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
 	.info = snd_echo_clock_source_info,
@@ -1643,7 +1643,7 @@ static int snd_echo_phantom_power_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_phantom_power_switch = {
+static const struct snd_kcontrol_new snd_echo_phantom_power_switch = {
 	.name = "Phantom power Switch",
 	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
 	.info = snd_echo_phantom_power_info,
@@ -1686,7 +1686,7 @@ static int snd_echo_automute_put(struct snd_kcontrol *kcontrol,
 	return changed;
 }
 
-static struct snd_kcontrol_new snd_echo_automute_switch = {
+static const struct snd_kcontrol_new snd_echo_automute_switch = {
 	.name = "Digital Capture Switch (automute)",
 	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
 	.info = snd_echo_automute_info,
@@ -1713,7 +1713,7 @@ static int snd_echo_vumeters_switch_put(struct snd_kcontrol *kcontrol,
 	return 1;
 }
 
-static struct snd_kcontrol_new snd_echo_vumeters_switch = {
+static const struct snd_kcontrol_new snd_echo_vumeters_switch = {
 	.name = "VU-meters Switch",
 	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
 	.access = SNDRV_CTL_ELEM_ACCESS_WRITE,
@@ -1751,7 +1751,7 @@ static int snd_echo_vumeters_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static struct snd_kcontrol_new snd_echo_vumeters = {
+static const struct snd_kcontrol_new snd_echo_vumeters = {
 	.name = "VU-meters",
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = SNDRV_CTL_ELEM_ACCESS_READ |
@@ -1804,7 +1804,7 @@ static int snd_echo_channels_info_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static struct snd_kcontrol_new snd_echo_channels_info = {
+static const struct snd_kcontrol_new snd_echo_channels_info = {
 	.name = "Channels info",
 	.iface = SNDRV_CTL_ELEM_IFACE_HWDEP,
 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,