From: Lin Ma <lma@suse.com>
Date: Mon, 26 Sep 2016 05:29:58 +0000 (+0800)
Subject: iothread: check iothread->ctx before aio_context_unref to avoid assertion
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=eb7b5c35117bfb90dcfa881a0e3b23368c73fba6;p=qemu.git

iothread: check iothread->ctx before aio_context_unref to avoid assertion

if iothread->ctx is set to NULL, aio_context_unref triggers the assertion:
g_source_unref: assertion 'source != NULL' failed.
The patch fixes it.

Signed-off-by: Lin Ma <lma@suse.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20160926052958.10716-1-lma@suse.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/iothread.c b/iothread.c
index fb08a60b4b..fbeb8deb38 100644
--- a/iothread.c
+++ b/iothread.c
@@ -75,6 +75,9 @@ static void iothread_instance_finalize(Object *obj)
     iothread_stop(obj, NULL);
     qemu_cond_destroy(&iothread->init_done_cond);
     qemu_mutex_destroy(&iothread->init_done_lock);
+    if (!iothread->ctx) {
+        return;
+    }
     aio_context_unref(iothread->ctx);
 }