[PATCH-next] usb: gadget: dereference before null check

[SebinSebastian]

From: Sebin Sebastian <mailmesebin00 at gmail.com>

Fix coverity warning dereferencing before null check. _ep and desc is
deferenced on all paths until the check for null. Move the
initilizations after the check for null.
Coverity issue: 1518209

Signed-off-by: Sebin Sebastian <mailmesebin00 at gmail.com>
---
 drivers/usb/gadget/udc/aspeed_udc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/aspeed_udc.c b/drivers/usb/gadget/udc/aspeed_udc.c
index d75a4e070bf7..4f158030e2cc 100644
--- a/drivers/usb/gadget/udc/aspeed_udc.c
+++ b/drivers/usb/gadget/udc/aspeed_udc.c
@@ -341,10 +341,6 @@ static void ast_udc_stop_activity(struct ast_udc_dev *udc)
 static int ast_udc_ep_enable(struct usb_ep *_ep,
 			     const struct usb_endpoint_descriptor *desc)
 {
-	u16 maxpacket = usb_endpoint_maxp(desc);
-	struct ast_udc_ep *ep = to_ast_ep(_ep);
-	struct ast_udc_dev *udc = ep->udc;
-	u8 epnum = usb_endpoint_num(desc);
 	unsigned long flags;
 	u32 ep_conf = 0;
 	u8 dir_in;
@@ -355,6 +351,12 @@ static int ast_udc_ep_enable(struct usb_ep *_ep,
 		EP_DBG(ep, "Failed, invalid EP enable param\n");
 		return -EINVAL;
 	}
+
+	u16 maxpacket = usb_endpoint_maxp(desc);
+	struct ast_udc_ep *ep = to_ast_ep(_ep);
+	struct ast_udc_dev *udc = ep->udc;
+	u8 epnum = usb_endpoint_num(desc);
+
 
 	if (!udc->driver) {
 		EP_DBG(ep, "bogus device state\n");
-- 
2.34.1