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authorBhumika Goyal <bhumirks@gmail.com>2017-04-12 18:38:06 +0530
committerTakashi Iwai <tiwai@suse.de>2017-04-12 15:34:44 +0200
commit8fdaebbb83b4e734c7ec1fcab5f1b26ec264965d (patch)
tree16277e6955d926edaaba0896b3665feac4abe1b7 /sound/usb/mixer.c
parentf91c9d7610a2fe306273a83e2fd5351bceb85d28 (diff)
ALSA: usb-audio: constify snd_kcontrol_new structures
Declare snd_kcontrol_new strcutures 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 this property can be made const too. Done using Coccinelle: @r disable optional_qualifier@ identifier x; position p; @@ static struct snd_kcontrol_new x@p={...}; @ok@ identifier r.x; position p; @@ snd_ctl_new1(&x@p,...) @bad@ position p != {r.p,ok.p}; identifier r.x; @@ x@p @depends on !bad disable optional_qualifier@ identifier r.x; @@ +const struct snd_kcontrol_new x; Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.c')
-rw-r--r--sound/usb/mixer.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 4703caea56b2..082736c539bc 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1172,7 +1172,7 @@ static struct snd_kcontrol_new usb_feature_unit_ctl = {
};
/* the read-only variant */
-static struct snd_kcontrol_new usb_feature_unit_ctl_ro = {
+static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "", /* will be filled later manually */
.info = mixer_ctl_feature_info,
@@ -1745,7 +1745,7 @@ static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol,
}
/* alsa control interface for processing/extension unit */
-static struct snd_kcontrol_new mixer_procunit_ctl = {
+static const struct snd_kcontrol_new mixer_procunit_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "", /* will be filled later */
.info = mixer_ctl_feature_info,
@@ -2033,7 +2033,7 @@ static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol,
}
/* alsa control interface for selector unit */
-static struct snd_kcontrol_new mixer_selectunit_ctl = {
+static const struct snd_kcontrol_new mixer_selectunit_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "", /* will be filled later */
.info = mixer_ctl_selector_info,