From 41eb1a7e7ec33ee7abd62fa954be6b995d6e9707 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 11 Jun 2012 19:43:14 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4271
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/src/serial_usb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'os/hal/src')

diff --git a/os/hal/src/serial_usb.c b/os/hal/src/serial_usb.c
index 5fec52a68..52be6e975 100644
--- a/os/hal/src/serial_usb.c
+++ b/os/hal/src/serial_usb.c
@@ -288,8 +288,8 @@ void sduDataTransmitted(USBDriver *usbp, usbep_t ep) {
 
   (void)ep;
 
-  chnAddFlagsI(sdup, CHN_OUTPUT_EMPTY);
   chSysLockFromIsr();
+  chnAddFlagsI(sdup, CHN_OUTPUT_EMPTY);
 
   if ((n = chOQGetFullI(&sdup->oqueue)) > 0) {
     /* The endpoint cannot be busy, we are in the context of the callback,
@@ -321,8 +321,8 @@ void sduDataReceived(USBDriver *usbp, usbep_t ep) {
 
   (void)ep;
 
-  chnAddFlagsI(sdup, CHN_INPUT_AVAILABLE);
   chSysLockFromIsr();
+  chnAddFlagsI(sdup, CHN_INPUT_AVAILABLE);
 
   /* Writes to the input queue can only happen when there is enough space
      to hold at least one packet.*/
-- 
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