Improve early return in CGifLZWDecoder::Decode

core/fxcodec/lgif/fx_gif.cpp

Index: core/fxcodec/lgif/fx_gif.cpp
diff --git a/core/fxcodec/lgif/fx_gif.cpp b/core/fxcodec/lgif/fx_gif.cpp
index b996ba97965a124013933c68bac0916d8f1f6b37..b509c8ccfd36a550ae23272af0af5515f80a999e 100644
--- a/core/fxcodec/lgif/fx_gif.cpp
+++ b/core/fxcodec/lgif/fx_gif.cpp
@@ -118,7 +118,7 @@ int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, uint32_t& des_size) {
       if (code == code_clear) {
         ClearTable();
         continue;
-      } else if (code == code_end) {
+      } else if (code >= code_end) {
         des_size = i;
         return 1;
       } else {