From 732dcfe7fdfa7534ab0de4674ae17f191167a57a Mon Sep 17 00:00:00 2001
From: Friedemann Kleint <Friedemann.Kleint@digia.com>
Date: Tue, 18 Jun 2013 14:48:21 +0200
Subject: QFactoryLoader: Release unused libraries.

Task-number: QTBUG-31476

Change-Id: Ib2eb076afaa21ab1fdc12944f80483e3de260d4b
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
---
 src/corelib/plugin/qfactoryloader.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/corelib/plugin/qfactoryloader.cpp b/src/corelib/plugin/qfactoryloader.cpp
index 943fb35ab6..1288643e32 100644
--- a/src/corelib/plugin/qfactoryloader.cpp
+++ b/src/corelib/plugin/qfactoryloader.cpp
@@ -183,7 +183,7 @@ void QFactoryLoader::update()
                 continue;
             }
 
-            d->libraryList += library;
+            int keyUsageCount = 0;
             for (int k = 0; k < keys.count(); ++k) {
                 // first come first serve, unless the first
                 // library was built with a future Qt version,
@@ -198,8 +198,13 @@ void QFactoryLoader::update()
                 int qt_version = (int)library->metaData.value(QLatin1String("version")).toDouble();
                 if (!previous || (prev_qt_version > QT_VERSION && qt_version <= QT_VERSION)) {
                     d->keyMap[key] = library;
+                    ++keyUsageCount;
                 }
             }
+            if (keyUsageCount || keys.isEmpty())
+                d->libraryList += library;
+            else
+                library->release();
         }
     }
 #else
-- 
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