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-rw-r--r--components/drivers/usb/usbdevice/class/winusb.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/components/drivers/usb/usbdevice/class/winusb.c b/components/drivers/usb/usbdevice/class/winusb.c
index 906ba44169..f39dab9f06 100644
--- a/components/drivers/usb/usbdevice/class/winusb.c
+++ b/components/drivers/usb/usbdevice/class/winusb.c
@@ -324,6 +324,8 @@ ufunction_t rt_usbd_function_winusb_create(udevice_t device)
/* allocate memory for cdc vcom data */
winusb_device = (winusb_device_t)rt_malloc(sizeof(struct winusb_device));
+ if (winusb_device == NULL)
+ return RT_NULL;
rt_memset((void *)winusb_device, 0, sizeof(struct winusb_device));
func->user_data = (void*)winusb_device;
/* create an interface object */