From a795ef8dcb8cbadffc996c41ff38927a97645234 Mon Sep 17 00:00:00 2001
From: Brad Smith <brad@comstyle.com>
Date: Fri, 28 Dec 2012 01:00:26 -0500
Subject: [PATCH] Fix semaphores fallback code

As reported in bug 1087114 the semaphores fallback code is broken which
results in QEMU crashing and making QEMU unusable.

This patch is from Paolo.

This needs to be back ported to the 1.3 stable tree as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 qemu-thread-posix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qemu-thread-posix.c b/qemu-thread-posix.c
index 6374df3328a0..4489abf1d850 100644
--- a/qemu-thread-posix.c
+++ b/qemu-thread-posix.c
@@ -213,6 +213,7 @@ int qemu_sem_timedwait(QemuSemaphore *sem, int ms)
     while (sem->count < 0) {
         rc = pthread_cond_timedwait(&sem->cond, &sem->lock, &ts);
         if (rc == ETIMEDOUT) {
+            ++sem->count;
             break;
         }
         if (rc != 0) {