QStorageInfo/Unix: check the mount point length before isParentOf()

Execute the cheaper test first, so we loop over the entries more
quickly.

Pick-to: 6.6
Change-Id: I9d43e5b91eb142d6945cfffd178749a12c966739
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/io/qstorageinfo_unix.cpp b/src/corelib/io/qstorageinfo_unix.cpp
index 3c80c31453..af65823b1d 100644
--- a/src/corelib/io/qstorageinfo_unix.cpp
+++ b/src/corelib/io/qstorageinfo_unix.cpp
@@ -449,7 +449,7 @@ void QStorageInfoPrivate::initRootPath()
         const QString mountDir = it.rootPath();
         const QByteArray fsName = it.fileSystemType();
         // we try to find most suitable entry
-        if (isParentOf(mountDir, oldRootPath) && maxLength < mountDir.size()) {
+        if (maxLength < mountDir.size() && isParentOf(mountDir, oldRootPath)) {
             maxLength = mountDir.size();
             rootPath = mountDir;
             device = it.device();