ALSA: hda - Refactor alc_kcontrol_new() usages

Allocate the name string and assign the structure in
alc_kcontrol_new() itself to reduce the code.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -903,22 +903,25 @@ static const struct snd_kcontrol_new alc_automute_mode_enum = {
 	.put = alc_automute_mode_put,
 };
 
-static struct snd_kcontrol_new *alc_kcontrol_new(struct alc_spec *spec)
+static struct snd_kcontrol_new *
+alc_kcontrol_new(struct alc_spec *spec, const char *name,
+		 const struct snd_kcontrol_new *temp)
 {
-	return snd_array_new(&spec->kctls);
+	struct snd_kcontrol_new *knew = snd_array_new(&spec->kctls);
+	if (!knew)
+		return NULL;
+	*knew = *temp;
+	knew->name = kstrdup(name, GFP_KERNEL);
+	if (!knew->name)
+		return NULL;
+	return knew;
 }
 
 static int alc_add_automute_mode_enum(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	struct snd_kcontrol_new *knew;
 
-	knew = alc_kcontrol_new(spec);
-	if (!knew)
-		return -ENOMEM;
-	*knew = alc_automute_mode_enum;
-	knew->name = kstrdup("Auto-Mute Mode", GFP_KERNEL);
-	if (!knew->name)
+	if (!alc_kcontrol_new(spec, "Auto-Mute Mode", &alc_automute_mode_enum))
 		return -ENOMEM;
 	return 0;
 }
@@ -1756,12 +1759,9 @@ static const struct snd_kcontrol_new alc_inv_dmic_sw = {
 static int alc_add_inv_dmic_mixer(struct hda_codec *codec, hda_nid_t nid)
 {
 	struct alc_spec *spec = codec->spec;
-	struct snd_kcontrol_new *knew = alc_kcontrol_new(spec);
-	if (!knew)
-		return -ENOMEM;
-	*knew = alc_inv_dmic_sw;
-	knew->name = kstrdup("Inverted Internal Mic Capture Switch", GFP_KERNEL);
-	if (!knew->name)
+
+	if (!alc_kcontrol_new(spec, "Inverted Internal Mic Capture Switch",
+			      &alc_inv_dmic_sw))
 		return -ENOMEM;
 	spec->inv_dmic_fixup = 1;
 	spec->inv_dmic_muted = 0;
@@ -2537,13 +2537,9 @@ static int add_control(struct alc_spec *spec, int type, const char *name,
 {
 	struct snd_kcontrol_new *knew;
 
-	knew = alc_kcontrol_new(spec);
+	knew = alc_kcontrol_new(spec, name, &alc_control_templates[type]);
 	if (!knew)
 		return -ENOMEM;
-	*knew = alc_control_templates[type];
-	knew->name = kstrdup(name, GFP_KERNEL);
-	if (!knew->name)
-		return -ENOMEM;
 	knew->index = cidx;
 	if (get_amp_nid_(val))
 		knew->subdevice = HDA_SUBDEV_AMP_FLAG;
@@ -3986,14 +3982,8 @@ static int alc_auto_add_multi_channel_mode(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 
 	if (spec->multi_ios > 0) {
-		struct snd_kcontrol_new *knew;
-
-		knew = alc_kcontrol_new(spec);
-		if (!knew)
-			return -ENOMEM;
-		*knew = alc_auto_channel_mode_enum;
-		knew->name = kstrdup("Channel Mode", GFP_KERNEL);
-		if (!knew->name)
+		if (!alc_kcontrol_new(spec, "Channel Mode",
+				      &alc_auto_channel_mode_enum))
 			return -ENOMEM;
 	}
 	return 0;