From 66e98353166bf120c4ca1b264b926b09b8d90d20 Mon Sep 17 00:00:00 2001
From: Nikhil Badola <nikhil.badola@freescale.com>
Date: Tue, 9 Jun 2015 16:47:17 +0530
Subject: drivers: usb: gadget: Correct NULL pointer checking in fsl gadget

Correct NULL pointer checking for endpoint descriptor
before it gets dereferenced

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Change-Id: I449d00d49f2ae842aa256907021b95b7885ccaf5
Reviewed-on: http://git.am.freescale.net:8181/37641
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Reviewed-by: Honghua Yin <Hong-Hua.Yin@freescale.com>

diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 638a345..2068625 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1059,7 +1059,7 @@ static int fsl_ep_fifo_status(struct usb_ep *_ep)
 	struct ep_queue_head *qh;
 
 	ep = container_of(_ep, struct fsl_ep, ep);
-	if (!_ep || (!ep->ep.desc && ep_index(ep) != 0))
+	if (!_ep || !ep->ep.desc || (ep_index(ep) == 0))
 		return -ENODEV;
 
 	udc = (struct fsl_udc *)ep->udc;
-- 
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