ALSA: usb: mixer: use snd_kcontrol_chip()

We can use snd_kcontrol_chip(). Let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/87msbpaud1.wl-kuninori.morimoto.gx@renesas.com

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 66976be06bc0886833947b77b12d1f7c13fc8f83..11be79af26db65c06d7e3c42a545dd2accab08a6 100644 (file)
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -547,7 +547,7 @@ int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
 int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
                         unsigned int size, unsigned int __user *_tlv)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        DECLARE_TLV_DB_MINMAX(scale, 0, 0);
 
        if (size < sizeof(scale))
@@ -1367,7 +1367,7 @@ static int get_max_exposed(struct usb_mixer_elem_info *cval)
 static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_info *uinfo)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
 
        if (cval->val_type == USB_MIXER_BOOLEAN ||
            cval->val_type == USB_MIXER_INV_BOOLEAN)
@@ -1399,7 +1399,7 @@ static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int c, cnt, val, err;
 
        ucontrol->value.integer.value[0] = cval->min;
@@ -1431,7 +1431,7 @@ static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int max_val = get_max_exposed(cval);
        int c, cnt, val, oval, err;
        int changed = 0;
@@ -1475,7 +1475,7 @@ static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol,
                                     struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int val, err;
 
        err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
@@ -1543,7 +1543,7 @@ error:
 static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int ret, val;
 
        ret = get_connector_value(cval, kcontrol->id.name, &val);
@@ -2302,7 +2302,7 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid,
 static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int err, val;
 
        err = get_cur_ctl_value(cval, cval->control << 8, &val);
@@ -2319,7 +2319,7 @@ static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int val, oval, err;
 
        err = get_cur_ctl_value(cval, cval->control << 8, &oval);
@@ -2654,7 +2654,7 @@ static int parse_audio_extension_unit(struct mixer_build *state, int unitid,
 static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_info *uinfo)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        const char **itemlist = (const char **)kcontrol->private_value;
 
        if (snd_BUG_ON(!itemlist))
@@ -2666,7 +2666,7 @@ static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int val, err;
 
        err = get_cur_ctl_value(cval, cval->control << 8, &val);
@@ -2683,7 +2683,7 @@ static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol,
 static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
-       struct usb_mixer_elem_info *cval = kcontrol->private_data;
+       struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol);
        int val, oval, err;
 
        err = get_cur_ctl_value(cval, cval->control << 8, &oval);