From 4ce82d714a3820b1d96c983d2f62e1faef1b8bab Mon Sep 17 00:00:00 2001
From: Russ Butler <russ.butler@arm.com>
Date: Thu, 3 May 2018 18:07:02 -0500
Subject: [PATCH] Fix return code check in endpoint abort

Assert that HAL_PCD_EP_Abort returns HAL_OK rather that something else.
---
 usb/device/targets/TARGET_STM/USBPhy_STM32.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp b/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
index 472b2021f5..e8ab482f75 100644
--- a/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
+++ b/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
@@ -473,7 +473,7 @@ void USBPhyHw::endpoint_abort(usb_ep_t endpoint)
     // TODO - stop the current transfer on this endpoint and don't call the IN or OUT callback
 		HAL_StatusTypeDef ret;
 		ret = HAL_PCD_EP_Abort(&hpcd, endpoint);
-		MBED_ASSERT(ret!=HAL_OK);
+		MBED_ASSERT(ret==HAL_OK);
 		return;
 }