From 516ae494bf07dc8ebcecaab008f1120813869273 Mon Sep 17 00:00:00 2001
From: Adriaan de Groot <groot@kde.org>
Date: Fri, 2 Nov 2018 12:04:09 -0400
Subject: [PATCH] [partition] Complain if unmount fails

 - If unmount fails, then warn and don't autoremove
---
 src/modules/partition/core/PartUtils.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/modules/partition/core/PartUtils.cpp b/src/modules/partition/core/PartUtils.cpp
index 0423e1dde..e9d15ebb6 100644
--- a/src/modules/partition/core/PartUtils.cpp
+++ b/src/modules/partition/core/PartUtils.cpp
@@ -196,7 +196,12 @@ lookForFstabEntries( const QString& partitionPath )
             fstabFile.close();
         }
 
-        QProcess::execute( "umount", { "-R", mountsDir.path() } );
+        if ( QProcess::execute( "umount", { "-R", mountsDir.path() } ) )
+        {
+            cWarning() << "Could not unmount" << mountsDir.path();
+            // There is stuff left in there, really don't remove
+            mountsDir.setAutoRemove( false );
+        }
     }
 
     return fstabEntries;