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[Qemu-devel] [PULL 47/58] qdev-monitor: Unref device when device_add fai


From: Andreas Färber
Subject: [Qemu-devel] [PULL 47/58] qdev-monitor: Unref device when device_add fails
Date: Tue, 8 Oct 2013 19:44:45 +0200

From: Stefan Hajnoczi <address@hidden>

qdev_device_add() leaks the created device upon failure.  I suspect this
problem crept in because qdev_free() unparents the device but does not
drop a reference - confusing name.

Cc: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Andreas Färber <address@hidden>
---
 qdev-monitor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/qdev-monitor.c b/qdev-monitor.c
index b1ce26a..531b258 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -518,6 +518,7 @@ DeviceState *qdev_device_add(QemuOpts *opts)
     }
     if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) {
         qdev_free(qdev);
+        object_unref(OBJECT(qdev));
         return NULL;
     }
     if (qdev->id) {
@@ -531,6 +532,7 @@ DeviceState *qdev_device_add(QemuOpts *opts)
         g_free(name);
     }        
     if (qdev_init(qdev) < 0) {
+        object_unref(OBJECT(qdev));
         qerror_report(QERR_DEVICE_INIT_FAILED, driver);
         return NULL;
     }
-- 
1.8.1.4




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