From c59cd92c12c0a04c6b772561acf4f2b652e0d6d3 Mon Sep 17 00:00:00 2001
From: Radim Blazek <radim.blazek@gmail.com>
Date: Mon, 4 Nov 2013 08:26:42 +0100
Subject: [PATCH] Load raster category names fix

---
 src/providers/gdal/qgsgdalproviderbase.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/providers/gdal/qgsgdalproviderbase.cpp b/src/providers/gdal/qgsgdalproviderbase.cpp
index 886d0d6ce20..16fbcaf1370 100644
--- a/src/providers/gdal/qgsgdalproviderbase.cpp
+++ b/src/providers/gdal/qgsgdalproviderbase.cpp
@@ -63,11 +63,14 @@ QList<QgsColorRampShader::ColorRampItem> QgsGdalProviderBase::colorTable( GDALDa
     // load category labels
     char ** categoryNames = GDALGetRasterCategoryNames( myGdalBand );
     QVector<QString> labels;
-    int i = 0;
-    while ( categoryNames[i] )
+    if ( categoryNames )
     {
-      labels.append( QString( categoryNames[i] ) );
-      i++;
+      int i = 0;
+      while ( categoryNames[i] )
+      {
+        labels.append( QString( categoryNames[i] ) );
+        i++;
+      }
     }
 
     int myEntryCount = GDALGetColorEntryCount( myGdalColorTable );