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[PULL v2 03/28] libvhost-user: remove watch for kick_fd when de-initiali

From: Stefan Hajnoczi
Subject: [PULL v2 03/28] libvhost-user: remove watch for kick_fd when de-initialize vu-dev
Date: Thu, 22 Oct 2020 12:27:01 +0100

From: Coiby Xu <coiby.xu@gmail.com>

When the client is running in gdb and quit command is run in gdb,
QEMU will still dispatch the event which will cause segment fault in
the callback function.

Signed-off-by: Coiby Xu <coiby.xu@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20200918080912.321299-3-coiby.xu@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 contrib/libvhost-user/libvhost-user.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/libvhost-user/libvhost-user.c 
index 09bdff18f3..bfec8a881a 100644
--- a/contrib/libvhost-user/libvhost-user.c
+++ b/contrib/libvhost-user/libvhost-user.c
@@ -1918,6 +1918,7 @@ vu_deinit(VuDev *dev)
         if (vq->kick_fd != -1) {
+            dev->remove_watch(dev, vq->kick_fd);
             vq->kick_fd = -1;

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