diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index e31349865f202d0367e69ee00a5cac2d7789dcb0..01b414448312612a8dd0e3c00baa7d096d86f344 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -538,11 +538,17 @@ static int set_sample_rate_v2v3(struct snd_usb_audio *chip, int iface,
 		struct uac3_clock_source_descriptor *cs_desc;
 
 		cs_desc = snd_usb_find_clock_source_v3(chip->ctrl_intf, clock);
+		if (!cs_desc)
+			return 0;
+
 		bmControls = le32_to_cpu(cs_desc->bmControls);
 	} else {
 		struct uac_clock_source_descriptor *cs_desc;
 
 		cs_desc = snd_usb_find_clock_source(chip->ctrl_intf, clock);
+		if (!cs_desc)
+			return 0;
+
 		bmControls = cs_desc->bmControls;
 	}