Check for NULL familyName in SkFontMgr_fontconfig.

If the familyName is NULL, don't bother spending time trying to add
it to the FcPattern.

Review URL: https://codereview.chromium.org/1115073002

1 files changed, 6 insertions, 4 deletions

diff --git a/src/ports/SkFontMgr_fontconfig.cpp b/src/ports/SkFontMgr_fontconfig.cpp
index 58597d9395..f03e5acaf1 100644
--- a/src/ports/SkFontMgr_fontconfig.cpp
+++ b/src/ports/SkFontMgr_fontconfig.cpp
@@ -771,10 +771,12 @@ protected:
         FCLocker lock;
 
         SkAutoFcPattern pattern;
-        FcValue familyNameValue;
-        familyNameValue.type = FcTypeString;
-        familyNameValue.u.s = reinterpret_cast<const FcChar8*>(familyName);
-        FcPatternAddWeak(pattern, FC_FAMILY, familyNameValue, FcFalse);
+        if (familyName) {
+            FcValue familyNameValue;
+            familyNameValue.type = FcTypeString;
+            familyNameValue.u.s = reinterpret_cast<const FcChar8*>(familyName);
+            FcPatternAddWeak(pattern, FC_FAMILY, familyNameValue, FcFalse);
+        }
         fcpattern_from_skfontstyle(style, pattern);
 
         SkAutoFcCharSet charSet;