migration: process_incoming_migration_co: simplify code flow around ret

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20230428194928.1426370-7-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>

migration/migration.c

@@ -542,8 +542,13 @@ process_incoming_migration_co(void *opaque)
         /* Else if something went wrong then just fall out of the normal exit */
     }
 
+    if (ret < 0) {
+        error_report("load of migration failed: %s", strerror(-ret));
+        goto fail;
+    }
+
     /* we get COLO info, and know if we are in COLO mode */
-    if (!ret && migration_incoming_colo_enabled()) {
+    if (migration_incoming_colo_enabled()) {
         QemuThread colo_incoming_thread;
 
         /* Make sure all file formats throw away their mutable metadata */
@@ -565,10 +570,6 @@ process_incoming_migration_co(void *opaque)
         colo_release_ram_cache();
     }
 
-    if (ret < 0) {
-        error_report("load of migration failed: %s", strerror(-ret));
-        goto fail;
-    }
     mis->bh = qemu_bh_new(process_incoming_migration_bh, mis);
     qemu_bh_schedule(mis->bh);
     mis->migration_incoming_co = NULL;