diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index a1f5592cc5d5..fc622eb95dc5 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -3480,6 +3480,10 @@ static int snd_rme_digiface_write_reg(struct snd_kcontrol *kcontrol, int item, u
 	struct usb_device *dev = chip->dev;
 	int err;
 
+	CLASS(snd_usb_lock, pm)(chip);
+	if (pm.err < 0)
+		return -EIO;
+
 	err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 			      item,
 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
@@ -3499,6 +3503,10 @@ static int snd_rme_digiface_read_status(struct snd_kcontrol *kcontrol, u32 statu
 	__le32 buf[4] = {};
 	int err;
 
+	CLASS(snd_usb_lock, pm)(chip);
+	if (pm.err < 0)
+		return -EIO;
+
 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 			      RME_DIGIFACE_READ_STATUS,
 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,