[Qemu-devel] [PATCH] watchdog: 6300esb: add exit function

[Li Qiang <liq3ea@gmail.com>]

From: Li Qiang <liqiang6-s@360.cn>

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>
---
 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 a83d951..49b3cd1 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;
-- 
1.8.3.1