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-rw-r--r--src/corelib/io/qfsfileengine_unix.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index 7824520890..05e6fabecf 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -1245,7 +1245,7 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size, QFile::MemoryMapFla
}
if (offset < 0 || offset != qint64(QT_OFF_T(offset))
- || size < 0 || size > (size_t)-1) {
+ || size < 0 || size > qint64(size_t(-1))) {
q->setError(QFile::UnspecifiedError, qt_error_string(int(EINVAL)));
return 0;
}