From f701d09fb00038923a601ba7a8847feb216efa9b Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 20 Aug 2012 07:52:45 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4589
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/STM32/OTGv1/usb_lld.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/os/hal/platforms/STM32/OTGv1/usb_lld.c b/os/hal/platforms/STM32/OTGv1/usb_lld.c
index 9d899fd68..2653698fd 100644
--- a/os/hal/platforms/STM32/OTGv1/usb_lld.c
+++ b/os/hal/platforms/STM32/OTGv1/usb_lld.c
@@ -617,13 +617,13 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) {
        be triggered again.*/
     otgp->GINTMSK &= ~GINTMSK_RXFLVLM;
     /* Checks if the thread is waiting for an event.*/
+    chSysLockFromIsr();
     if (usbp->thd_wait != NULL) {
       /* The thread is made ready, it will be scheduled on ISR exit.*/
-      chSysLockFromIsr();
       chThdResumeI(usbp->thd_wait);
       usbp->thd_wait = NULL;
-      chSysUnlockFromIsr();
     }
+    chSysUnlockFromIsr();
   }
 
   /* IN/OUT endpoints event handling.*/
-- 
cgit v1.2.3