ALSA: ymfpci: use enum control info helper

Simplify the info callback by using the snd_ctl_enum_info() helper function.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 5518371..c94c051 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -1389,15 +1389,9 @@
 
 static int snd_ymfpci_drec_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info)
 {
-	static char *texts[3] = {"AC'97", "IEC958", "ZV Port"};
+	static const char *const texts[3] = {"AC'97", "IEC958", "ZV Port"};
 
-	info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	info->count = 1;
-	info->value.enumerated.items = 3;
-	if (info->value.enumerated.item > 2)
-		info->value.enumerated.item = 2;
-	strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]);
-	return 0;
+	return snd_ctl_enum_info(info, 1, 3, texts);
 }
 
 static int snd_ymfpci_drec_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value)