@@ -1446,13 +1446,11 @@ static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol,
return 0;
}
-/* get the connectors status and report it as boolean type */
-static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+static int get_connector_value(struct usb_mixer_elem_info *cval,
+ char *name, int *val)
{
- struct usb_mixer_elem_info *cval = kcontrol->private_data;
struct snd_usb_audio *chip = cval->head.mixer->chip;
- int idx = 0, validx, ret, val;
+ int idx = 0, validx, ret;
validx = cval->control << 8 | 0;
@@ -1467,21 +1465,24 @@ static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, idx, &uac2_conn, sizeof(uac2_conn));
- val = !!uac2_conn.bNrChannels;
+ if (val)
+ *val = !!uac2_conn.bNrChannels;
} else { /* UAC_VERSION_3 */
struct uac3_insertion_ctl_blk uac3_conn;
ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, idx, &uac3_conn, sizeof(uac3_conn));
- val = !!uac3_conn.bmConInserted;
+ if (val)
+ *val = !!uac3_conn.bmConInserted;
}
snd_usb_unlock_shutdown(chip);
if (ret < 0) {
- if (strstr(kcontrol->id.name, "Speaker")) {
- ucontrol->value.integer.value[0] = 1;
+ if (name && strstr(name, "Speaker")) {
+ if (val)
+ *val = 1;
return 0;
}
error:
@@ -1491,6 +1492,21 @@ static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
return filter_error(cval, ret);
}
+ return ret;
+}
+
+/* get the connectors status and report it as boolean type */
+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;
+ int ret, val;
+
+ ret = get_connector_value(cval, kcontrol->id.name, &val);
+
+ if (ret < 0)
+ return ret;
+
ucontrol->value.integer.value[0] = val;
return 0;
}
This is preparation for next patch, no functional change intended. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> --- v2: - Only return early when ret < 0. sound/usb/mixer.c | 34 +++++++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 9 deletions(-)