ALSA: usb-audio: scarlett2: Merge common line in capture strings

Use a common sprintf() format for the mixer element names generated in
scarlett2_add_line_in_ctls() in preparation for more of them.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/d91dce45ac75a541c21f47540ecbda24bd83f68c.1624294591.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 4c2ae81f94a86313a4a5fbb0b4703681f84bff53..c401b7d56408e49ff8f697835e0f207f557438cb 100644 (file)
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -1660,10 +1660,11 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
        const struct scarlett2_device_info *info = private->info;
        int err, i;
        char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+       const char *fmt = "Line In %d %s Capture %s";
 
        /* Add input level (line/inst) controls */
        for (i = 0; i < info->level_input_count; i++) {
-               snprintf(s, sizeof(s), "Line In %d Level Capture Enum", i + 1);
+               snprintf(s, sizeof(s), fmt, i + 1, "Level", "Enum");
                err = scarlett2_add_new_ctl(mixer, &scarlett2_level_enum_ctl,
                                            i, 1, s, NULL);
                if (err < 0)
@@ -1672,7 +1673,7 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
 
        /* Add input pad controls */
        for (i = 0; i < info->pad_input_count; i++) {
-               snprintf(s, sizeof(s), "Line In %d Pad Capture Switch", i + 1);
+               snprintf(s, sizeof(s), fmt, i + 1, "Pad", "Switch");
                err = scarlett2_add_new_ctl(mixer, &scarlett2_pad_ctl,
                                            i, 1, s, NULL);
                if (err < 0)