1 files changed, 2 insertions, 1 deletions

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index c04d7c71ac8..cdd19d7fe50 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -152,6 +152,7 @@ static inline void check_mapped_dB(const struct usbmix_name_map *p,
         if (p && p->dB) {
                 cval->dBmin = p->dB->min;
                 cval->dBmax = p->dB->max;
+                cval->initialized = 1;
         }
 }
 
@@ -1092,7 +1093,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
                                 " Switch" : " Volume");
                 if (control == UAC_FU_VOLUME) {
                         check_mapped_dB(map, cval);
-                        if (cval->dBmin < cval->dBmax) {
+                        if (cval->dBmin < cval->dBmax || !cval->initialized) {
                                 kctl->tlv.c = mixer_vol_tlv;
                                 kctl->vd[0].access |= 
                                         SNDRV_CTL_ELEM_ACCESS_TLV_READ |