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From 93b37bad75d14ed4b9e96cc3587d8ae16cb96ba3 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
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Date: Fri, 2 Oct 2020 17:46:08 -0400
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Subject: [PATCH 01/18] qga: fix assert regression on guest-shutdown
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
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Message-id: <20201002174608.943992-2-marcandre.lureau@redhat.com>
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Patchwork-id: 98534
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O-Subject: [RHEL-8.4.0 qemu-kvm PATCH 1/1] qga: fix assert regression on guest-shutdown
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Bugzilla: 1884531
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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From: Marc-André Lureau <marcandre.lureau@redhat.com>
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Since commit 781f2b3d1e ("qga: process_event() simplification"),
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send_response() is called unconditionally, but will assert when "rsp" is
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NULL. This may happen with QCO_NO_SUCCESS_RESP commands, such as
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"guest-shutdown".
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Fixes: 781f2b3d1e5ef389b44016a897fd55e7a780bf35
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Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
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Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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(cherry picked from commit 844bd70b5652f30bbace89499f513e3fbbb6457a)
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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qga/main.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/qga/main.c b/qga/main.c
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index c35c2a21209..12fa463f4cd 100644
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--- a/qga/main.c
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+++ b/qga/main.c
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@@ -529,7 +529,11 @@ static int send_response(GAState *s, const QDict *rsp)
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QString *payload_qstr, *response_qstr;
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GIOStatus status;
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- g_assert(rsp && s->channel);
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+ g_assert(s->channel);
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+
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+ if (!rsp) {
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+ return 0;
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+ }
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payload_qstr = qobject_to_json(QOBJECT(rsp));
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if (!payload_qstr) {
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--
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2.27.0
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