diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index fba01e4fcab1..bf5add40d3e1 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -772,8 +772,13 @@ static int pk_raw_event(struct hid_device *hdev, struct hid_report *report,
 		if (report->id == data[0])
 			switch (report->id) {
 			case 0x01: /* midi keys (qwerty)*/
-			case 0x03: /* midi keyboard (musical)*/
 			case 0x04: /* extra/midi keys (qwerty)*/
+				if (size < 4)
+					break;
+				ret = pcmidi_handle_report(pm, report->id,
+							   data, size);
+				break;
+			case 0x03: /* midi keyboard (musical)*/
 				ret = pcmidi_handle_report(pm,
 						report->id, data, size);
 				break;