Added missing null check when disposing the objects.

8 years ago · abd1ba437d
1 changed files with 7 additions and 7 deletions
--- a/src/ImageSharp/Processing/Quantization/FrameQuantizers/WuFrameQuantizer{TPixel}.cs
+++ b/src/ImageSharp/Processing/Quantization/FrameQuantizers/WuFrameQuantizer{TPixel}.cs
@ -157,13 +157,13 @@ namespace SixLabors.ImageSharp.Processing.Quantization.FrameQuantizers
            }
            finally
            {
-                this.vwt.Dispose();
-                this.vmr.Dispose();
-                this.vmg.Dispose();
-                this.vmb.Dispose();
-                this.vma.Dispose();
-                this.m2.Dispose();
-                this.tag.Dispose();
+                this.vwt?.Dispose();
+                this.vmr?.Dispose();
+                this.vmg?.Dispose();
+                this.vmb?.Dispose();
+                this.vma?.Dispose();
+                this.m2?.Dispose();
+                this.tag?.Dispose();
            }
        }