1 files changed, 3 insertions, 1 deletions
diff --git a/src/core/SkUtils.cpp b/src/core/SkUtils.cpp
index 6eceef52c1..d8ba2b39c1 100644
--- a/src/core/SkUtils.cpp
+++ b/src/core/SkUtils.cpp
@@ -279,7 +279,9 @@ int SkUTF16_CountUnichars(const void* text, size_t byteLength) {
                 return -1;
             }
             c = *src++;
-            SkASSERT(SkUTF16_IsLowSurrogate(c));
+            if (!SkUTF16_IsLowSurrogate(c)) {
+                return -1;
+            }
         }
         count += 1;
     }