File 0138-watchdog-6300esb-add-exit-function.patch of Package qemu.19028

From: Li Qiang <liqiang6-s@360.cn>
Date: Mon, 28 Nov 2016 17:49:04 -0800
Subject: watchdog: 6300esb: add exit function

When the Intel 6300ESB watchdog is hot unplug. The timer allocated
in realize isn't freed thus leaking memory leak. This patch avoid
this through adding the exit function.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-Id: <583cde9c.3223ed0a.7f0c2.886e@mx.google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit eb7a20a3616085d46aa6b4b4224e15587ec67e6e)
[BR: CVE-2016-10155 BSC#1021129]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/watchdog/wdt_i6300esb.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hw/watchdog/wdt_i6300esb.c b/hw/watchdog/wdt_i6300esb.c
index a83d951213177b4e23aa756e764c..49b3cd188a383fd7f32f6edbe6f9 100644
--- a/hw/watchdog/wdt_i6300esb.c
+++ b/hw/watchdog/wdt_i6300esb.c
@@ -428,6 +428,14 @@ static void i6300esb_realize(PCIDevice *dev, Error **errp)
     /* qemu_register_coalesced_mmio (addr, 0x10); ? */
 }
 
+static void i6300esb_exit(PCIDevice *dev)
+{
+    I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);
+
+    timer_del(d->timer);
+    timer_free(d->timer);
+}
+
 static WatchdogTimerModel model = {
     .wdt_name = "i6300esb",
     .wdt_description = "Intel 6300ESB",
@@ -441,6 +449,7 @@ static void i6300esb_class_init(ObjectClass *klass, void *data)
     k->config_read = i6300esb_config_read;
     k->config_write = i6300esb_config_write;
     k->realize = i6300esb_realize;
+    k->exit = i6300esb_exit;
     k->vendor_id = PCI_VENDOR_ID_INTEL;
     k->device_id = PCI_DEVICE_ID_INTEL_ESB_9;
     k->class_id = PCI_CLASS_SYSTEM_OTHER;