QFactoryLoader: Clarify how we track the prioritized library for a key

Assigning to a variable named `previous` to promote a library to be the
current/prioritized library is needlessly obfuscated.

Amends 6675e8c942c2f9797d66269368c729c5556528c2.

Pick-to: 6.8
Change-Id: Ibdd48cbb5daba60c231f9f71133c3b58d32f7781
Reviewed-by: Marc Mutz <[email protected]>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/corelib/plugin/qfactoryloader.cpp b/src/corelib/plugin/qfactoryloader.cpp
index 6486414d8c1..d96ec80d397 100644
--- a/src/corelib/plugin/qfactoryloader.cpp
+++ b/src/corelib/plugin/qfactoryloader.cpp
@@ -368,13 +368,13 @@ inline void QFactoryLoaderPrivate::updateSinglePath(const QString &path)
             // whereas the new one has a Qt version that fits
             // better
             constexpr int QtVersionNoPatch = QT_VERSION_CHECK(QT_VERSION_MAJOR, QT_VERSION_MINOR, 0);
-            QLibraryPrivate *&previous = keyMap[key];
+            QLibraryPrivate *&keyMapEntry = keyMap[key];
             int prev_qt_version = 0;
-            if (previous)
-                prev_qt_version = int(previous->metaData.value(QtPluginMetaDataKeys::QtVersion).toInteger());
+            if (keyMapEntry)
+                prev_qt_version = int(keyMapEntry->metaData.value(QtPluginMetaDataKeys::QtVersion).toInteger());
             int qt_version = int(library->metaData.value(QtPluginMetaDataKeys::QtVersion).toInteger());
-            if (!previous || (prev_qt_version > QtVersionNoPatch && qt_version <= QtVersionNoPatch)) {
-                previous = library.get();    // we WILL .release()
+            if (!keyMapEntry || (prev_qt_version > QtVersionNoPatch && qt_version <= QtVersionNoPatch)) {
+                keyMapEntry = library.get();    // we WILL .release()
                 ++keyUsageCount;
             }
         }