From 2d6c1ef40f3678ab47a4d14fb5dadaa486bfcda6 Mon Sep 17 00:00:00 2001
From: Amit Shah <amit.shah@redhat.com>
Date: Thu, 10 Feb 2011 12:55:20 +0530
Subject: char: Prevent multiple devices opening same chardev

Prevent:

-chardev socket,path=/tmp/foo,server,nowait,id=c0 \
-device virtserialport,chardev=c0,id=vs0 \
-device virtserialport,chardev=c0,id=vs1

Reported-by: Mike Cao <bcao@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 qemu-char.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'qemu-char.h')

diff --git a/qemu-char.h b/qemu-char.h
index 56d9954c52..fb96eef3de 100644
--- a/qemu-char.h
+++ b/qemu-char.h
@@ -70,6 +70,7 @@ struct CharDriverState {
     char *label;
     char *filename;
     int opened;
+    int assigned; /* chardev assigned to a device */
     QTAILQ_ENTRY(CharDriverState) next;
 };
 
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