ASoC: soc-dapm: cleanup cppcheck warning at dapm_new_dai_link()

This patch cleanups below cppcheck warning, and its related code.

sound/soc/soc-dapm.c:1077:9: style: The scope of the variable 'ret' can be reduced. [variableScope]
 int i, ret;
        ^
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sfzou24s.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-dapm.c

@@ -1074,10 +1074,7 @@ static int dapm_new_pga(struct snd_soc_dapm_widget *w)
 /* create new dapm dai link control */
 static int dapm_new_dai_link(struct snd_soc_dapm_widget *w)
 {
-	int i, ret;
-	struct snd_kcontrol *kcontrol;
-	struct snd_soc_dapm_context *dapm = w->dapm;
-	struct snd_card *card = dapm->card->snd_card;
+	int i;
 	struct snd_soc_pcm_runtime *rtd = w->priv;
 
 	/* create control for links with > 1 config */
@@ -1086,9 +1083,12 @@ static int dapm_new_dai_link(struct snd_soc_dapm_widget *w)
 
 	/* add kcontrol */
 	for (i = 0; i < w->num_kcontrols; i++) {
-		kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w,
-					w->name, NULL);
-		ret = snd_ctl_add(card, kcontrol);
+		struct snd_soc_dapm_context *dapm = w->dapm;
+		struct snd_card *card = dapm->card->snd_card;
+		struct snd_kcontrol *kcontrol = snd_soc_cnew(&w->kcontrol_news[i],
+							     w, w->name, NULL);
+		int ret = snd_ctl_add(card, kcontrol);
+
 		if (ret < 0) {
 			dev_err(dapm->dev,
 				"ASoC: failed to add widget %s dapm kcontrol %s: %d\n",