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-rw-r--r--core/src/xmake/lz4/block_decompress.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/xmake/lz4/block_decompress.c b/core/src/xmake/lz4/block_decompress.c
index 144400521..c8c75adf2 100644
--- a/core/src/xmake/lz4/block_decompress.c
+++ b/core/src/xmake/lz4/block_decompress.c
@@ -52,7 +52,7 @@ tb_int_t xm_lz4_block_decompress(lua_State* lua)
// get real size
tb_int_t real = (tb_int_t)lua_tointeger(lua, 3);
- if (real > 0)
+ if (real <= 0)
{
lua_pushnil(lua);
lua_pushfstring(lua, "invalid output size(%d)!", real);