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ALSA: usb-audio: constify snd_kcontrol_new structures

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Declare snd_kcontrol_new structures as const as they are only passed as
an argument to the function add_new_ctl. This agrument is of type const,
so snd_kcontrol_new structures having this property can be made const
too.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Bhumika Goyal 2017-02-22 01:33:27 +05:30 committed by Takashi Iwai
parent f3b827e0b1
commit 04bab35044
1 changed files with 6 additions and 6 deletions
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12
sound/usb/mixer_scarlett.c
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@ -477,7 +477,7 @@ static int scarlett_ctl_meter_get(struct snd_kcontrol *kctl,
return 0;
}
static struct snd_kcontrol_new usb_scarlett_ctl_switch = {
static const struct snd_kcontrol_new usb_scarlett_ctl_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett_ctl_switch_info,
@ -487,7 +487,7 @@ static struct snd_kcontrol_new usb_scarlett_ctl_switch = {
static const DECLARE_TLV_DB_SCALE(db_scale_scarlett_gain, -12800, 100, 0);
static struct snd_kcontrol_new usb_scarlett_ctl = {
static const struct snd_kcontrol_new usb_scarlett_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
@ -499,7 +499,7 @@ static struct snd_kcontrol_new usb_scarlett_ctl = {
.tlv = { .p = db_scale_scarlett_gain }
};
static struct snd_kcontrol_new usb_scarlett_ctl_master = {
static const struct snd_kcontrol_new usb_scarlett_ctl_master = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
@ -511,7 +511,7 @@ static struct snd_kcontrol_new usb_scarlett_ctl_master = {
.tlv = { .p = db_scale_scarlett_gain }
};
static struct snd_kcontrol_new usb_scarlett_ctl_enum = {
static const struct snd_kcontrol_new usb_scarlett_ctl_enum = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett_ctl_enum_info,
@ -519,7 +519,7 @@ static struct snd_kcontrol_new usb_scarlett_ctl_enum = {
.put = scarlett_ctl_enum_put,
};
static struct snd_kcontrol_new usb_scarlett_ctl_dynamic_enum = {
static const struct snd_kcontrol_new usb_scarlett_ctl_dynamic_enum = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett_ctl_enum_dynamic_info,
@ -527,7 +527,7 @@ static struct snd_kcontrol_new usb_scarlett_ctl_dynamic_enum = {
.put = scarlett_ctl_enum_put,
};
static struct snd_kcontrol_new usb_scarlett_ctl_sync = {
static const struct snd_kcontrol_new usb_scarlett_ctl_sync = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
.name = "",