From ed27397ede0f78a4ab6286c4c74b3a247a4dd7fd Mon Sep 17 00:00:00 2001
From: Dongjin Kim <tobetter@gmail.com>
Date: Wed, 7 Aug 2019 18:47:45 +0900
Subject: [PATCH] ODROID-N2: usb/gadget: validate null pointer of usb device

Change-Id: I83c1d224d443ca0c97ea02db189d2f8d0e7733e9
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
---
 drivers/usb/gadget/function/f_accessory.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c
index 7aa2656a2328..d7f4949908d3 100644
--- a/drivers/usb/gadget/function/f_accessory.c
+++ b/drivers/usb/gadget/function/f_accessory.c
@@ -840,6 +840,11 @@ int acc_ctrlrequest(struct usb_composite_dev *cdev,
 			w_value, w_index, w_length);
 */
 
+#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
+	if (!dev)
+		goto err;
+#endif
+
 	if (b_requestType == (USB_DIR_OUT | USB_TYPE_VENDOR)) {
 		if (b_request == ACCESSORY_START) {
 			dev->start_requested = 1;