usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc

[linux-2.6-block.git] / drivers / usb / gadget / udc / fsl_qe_udc.c

diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 9c5dc1c1a68ea889a8b5f0f2c40e8b69650ecbbc..4aae86b47edfc4519d4c29b5e54b5843c08beba4 100644 (file)
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -1959,6 +1959,8 @@ static void ch9getstatus(struct qe_udc *udc, u8 request_type, u16 value,
        } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) {
                /* Get endpoint status */
                int pipe = index & USB_ENDPOINT_NUMBER_MASK;
+               if (pipe >= USB_MAX_ENDPOINTS)
+                       goto stall;
                struct qe_ep *target_ep = &udc->eps[pipe];
                u16 usep;