diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
index ebcc8c518..c56c6cdd5 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
@@ -430,6 +430,8 @@ struct dwc3_event_buffer *dwc3_alloc_one_event_buffer(struct dwc3 *dwc, unsigned
     }
 
     evt->dma = phy_addr;
+    
+    return evt;
 
 err_evt:
     usb_free(evt);