1 files changed, 5 insertions, 2 deletions
diff --git a/src/datavisualization/utils/texturehelper.cpp b/src/datavisualization/utils/texturehelper.cpp
index 07130d7e..185d99e4 100644
--- a/src/datavisualization/utils/texturehelper.cpp
+++ b/src/datavisualization/utils/texturehelper.cpp
@@ -241,9 +241,12 @@ void TextureHelper::fillDepthTexture(GLuint texture,const QSize &size, GLuint te
 }
 #endif
 
-void TextureHelper::deleteTexture(const GLuint *texture)
+void TextureHelper::deleteTexture(GLuint *texture)
 {
-    glDeleteTextures(1, texture);
+    if (texture && *texture) {
+        glDeleteTextures(1, texture);
+        *texture = 0;
+    }
 }
 
 QImage TextureHelper::convertToGLFormat(const QImage &srcImage)