deep-copy the charset name in QTextCodec::codecForText()

it is documented to remain valid as long as UCharsetMatch is

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

diff --git a/src/core/codecs/qtextcodec.cpp b/src/core/codecs/qtextcodec.cpp
index a8e6f71..b9bc2de 100644 (file)
--- a/src/core/codecs/qtextcodec.cpp
+++ b/src/core/codecs/qtextcodec.cpp
@@ -1783,14 +1783,14 @@ QTextCodec *QTextCodec::codecForText(const QByteArray &ba, QTextCodec *defaultCo
     }
 
     error = U_ZERO_ERROR;
-    const char *name = ucsdet_getName(match, &error);
+    const QByteArray name = ucsdet_getName(match, &error);
     if (Q_UNLIKELY(U_FAILURE(error))) {
         ucsdet_close(detector);
         return defaultCodec;
     }
 
     ucsdet_close(detector);
-    return QTextCodec::codecForName(name);
+    return QTextCodec::codecForName(name.constData());
 }
 
 /*!