fixed pass-through warning

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index 616a3d5818a6e0e84135277da1c4591a6f85ae9c..884a4e00dcacfef636d3872073a748e9cb834bf9 100644 (file)
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -389,6 +389,7 @@ size_t ZSTD_CCtxParam_setParameter(
         if (value == 0) return 0;
 #ifndef ZSTD_MULTITHREAD
         if (value > 1) return ERROR(parameter_unsupported);
+        return 0;
 #else
         return ZSTDMT_initializeCCtxParameters(params, value);
 #endif