Fix for r9888 bug

https://codereview.chromium.org/18656002/



git-svn-id: http://skia.googlecode.com/svn/trunk@9899 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index 8c14bc8..a57d77a 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -412,7 +412,7 @@
     bool isNormalBlur = (SkBlurMaskFilter::kNormal_BlurStyle == fBlurStyle);
     *result = context->gaussianBlur(src, isNormalBlur && canOverwriteSrc,
                                     clipRect, sigma, sigma);
-    if (NULL == result) {
+    if (NULL == *result) {
         return false;
     }