qstorageinfo_unix.cpp wouldbn't build on Solaris

@@ -201,17 +202,17 @@
 
 inline QString QStorageIterator::rootPath() const
 {
-    return QFile::decodeName(mnt->mnt_mountp);
+    return QFile::decodeName(mnt.mnt_mountp);
 }
 
 inline QByteArray QStorageIterator::fileSystemType() const
 {
-    return QByteArray(mnt->mnt_fstype);
+    return QByteArray(mnt.mnt_fstype);
 }
 
 inline QByteArray QStorageIterator::device() const
 {
-    return QByteArray(mnt->mnt_mntopts);
+    return QByteArray(mnt.mnt_mntopts);
 }