[banshee/stable-2.6] DapPropertiesDialog: Make sure progress bar value is valid (bgo#696700)

[Bertrand Lorentz <blorentz src gnome org>]

commit 560d08a82f39a07c2ed0be47fd333b9bdf2d793a
Author: Bertrand Lorentz <bertrand lorentz gmail com>
Date:   Sun Apr 7 21:59:53 2013 +0200

    DapPropertiesDialog: Make sure progress bar value is valid (bgo#696700)

 .../Banshee.Dap.Gui/DapPropertiesDialog.cs         |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/Dap/Banshee.Dap/Banshee.Dap.Gui/DapPropertiesDialog.cs 
b/src/Dap/Banshee.Dap/Banshee.Dap.Gui/DapPropertiesDialog.cs
index d439faa..a317b67 100644
--- a/src/Dap/Banshee.Dap/Banshee.Dap.Gui/DapPropertiesDialog.cs
+++ b/src/Dap/Banshee.Dap/Banshee.Dap.Gui/DapPropertiesDialog.cs
@@ -143,7 +143,8 @@ namespace Banshee.Dap
         private ProgressBar UsedProgressBar {
             get {
                 ProgressBar usedBar = new ProgressBar();
-                usedBar.Fraction = (double)source.BytesUsed / (double)source.BytesCapacity;
+                double progress = (double)source.BytesUsed / (double)source.BytesCapacity;
+                usedBar.Fraction = Math.Max (0.0, Math.Min (1.0, progress));
                 usedBar.Text = String.Format (
                     Catalog.GetString("{0} of {1}"),
                     new Hyena.Query.FileSizeQueryValue (source.BytesUsed).ToUserQuery (),