From e7ea7509ab95b71445d98b7c76cc74e1e1304779 Mon Sep 17 00:00:00 2001
From: Amit Shah <amit.shah@redhat.com>
Date: Fri, 11 Apr 2014 09:28:47 +0200
Subject: [PATCH 02/13] migration: qmp_migrate(): keep working after syntax error

RH-Author: Amit Shah <amit.shah@redhat.com>
Message-id: <717d7d24efbff7fe32d70c506edea41ea00d1edc.1397208304.git.amit.shah@redhat.com>
Patchwork-id: 58439
O-Subject: [RHEL7.0.z qemu-kvm PATCH 1/1] migration: qmp_migrate(): keep working after syntax error
Bugzilla: 1086598
RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
RH-Acked-by: Amos Kong <akong@redhat.com>
RH-Acked-by: Luiz Capitulino <lcapitulino@redhat.com>

From: Luiz Capitulino <lcapitulino@redhat.com>

If a user or QMP client enter a bad syntax for the migrate
command in QMP/HMP, then the migrate command will never succeed
from that point on.

For example, if you enter:

(qemu) migrate tcp;0:4444
migrate: Parameter 'uri' expects a valid migration protocol

Then the migrate command will always fail from now on:

(qemu) migrate tcp:0:4444
migrate: There's a migration process in progress

The problem is that qmp_migrate() sets the migration status to
MIG_STATE_SETUP and doesn't reset it on syntax error. This bug
was introduced by commit 29ae8a4133082e16970c9d4be09f4b6a15034617.

Bugzilla: 1086598

Reviewed-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
(cherry picked from commit c950114286ea358a93ce632db0421945e1008395)
Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 migration.c | 1 +
 1 file changed, 1 insertion(+)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 migration.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/migration.c b/migration.c
index 93de654..7efbd25 100644
--- a/migration.c
+++ b/migration.c
@@ -457,6 +457,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
 #endif
     } else {
         error_set(errp, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol");
+        s->state = MIG_STATE_ERROR;
         return;
     }
 
-- 
1.7.1