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[Xen-devel] [PATCH] Wait the state Connect of the frontend before connec

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] [PATCH] Wait the state Connect of the frontend before connect the backend.
From: anthony.perard@xxxxxxxxxx
Date: Mon, 17 May 2010 18:18:04 +0100
Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Delivery-date: Mon, 17 May 2010 10:20:18 -0700
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From: Anthony PERARD <anthony.perard@xxxxxxxxxx>

The frontend of the framebuffer set a value (request-abs-pointer) and go
to the state Connected.  The backend must read this value only when the
frontend has the state Connected.
 hw/xen_backend.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/hw/xen_backend.c b/hw/xen_backend.c
index 76d07ec..31ed7b0 100644
--- a/hw/xen_backend.c
+++ b/hw/xen_backend.c
@@ -411,8 +411,7 @@ static int xen_be_try_connect(struct XenDevice *xendev)
     int rc = 0;
-    if (xendev->fe_state != XenbusStateInitialised  &&
-       xendev->fe_state != XenbusStateConnected) {
+    if (xendev->fe_state != XenbusStateConnected) {
        if (xendev->ops->flags & DEVOPS_FLAG_IGNORE_STATE) {
            xen_be_printf(xendev, 2, "frontend not ready, ignoring\n");
        } else {

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