From e9cd6089c92a8a5169a3a281b02add2789644aa5 Mon Sep 17 00:00:00 2001
From: David Sidrane <david_s5@nscdg.com>
Date: Thu, 19 Jul 2018 20:13:47 +0000
Subject: [PATCH] Merged in david_s5/nuttx/master_kinetis_usbhang (pull request
 #688)

kinetis:USB0 fix interrupt storm on error

The ERROR bit of USBx_ISTAT needed to be cleared once an
   error occured.

Approved-by: GregoryN <gnutt@nuttx.org>
---
 arch/arm/src/kinetis/kinetis_usbdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/src/kinetis/kinetis_usbdev.c b/arch/arm/src/kinetis/kinetis_usbdev.c
index 52f04747c2..cf91a616f8 100644
--- a/arch/arm/src/kinetis/kinetis_usbdev.c
+++ b/arch/arm/src/kinetis/kinetis_usbdev.c
@@ -2793,6 +2793,7 @@ static int khci_interrupt(int irq, void *context, FAR void *arg)
       /* Clear all pending USB error interrupts */
 
       khci_putreg(USB_EINT_ALL, KINETIS_USB0_ERRSTAT);
+      khci_putreg(USB_INT_ERROR, KINETIS_USB0_ISTAT);
     }
 
   /* Service resume interrupts */