Only get head if not ep0.

Signed-off-by: Troy Kisky <troy.ki...@boundarydevices.com>
---
 drivers/usb/gadget/mv_udc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/mv_udc.c b/drivers/usb/gadget/mv_udc.c
index 2bf4bc0..82df9ab 100644
--- a/drivers/usb/gadget/mv_udc.c
+++ b/drivers/usb/gadget/mv_udc.c
@@ -231,10 +231,8 @@ static void mv_ep_free_request(struct usb_ep *ep, struct 
usb_request *_req)
 
 static void ep_enable(int num, int in, int maxpacket)
 {
-       struct ept_queue_head *head;
        struct mv_udc *udc = get_mv_udc();
        unsigned n;
-       head = mv_get_qh(num, in);
 
        n = readl(&udc->epctrl[num]);
        if (in)
@@ -243,6 +241,8 @@ static void ep_enable(int num, int in, int maxpacket)
                n |= (CTRL_RXE | CTRL_RXR | CTRL_RXT_BULK);
 
        if (num != 0) {
+               struct ept_queue_head *head = mv_get_qh(num, in);
+
                head->config = CONFIG_MAX_PKT(maxpacket) | CONFIG_ZLT;
                mv_flush_qh(num);
        }
-- 
1.8.1.2

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