delete error string in context

diff --git a/emi.canl.canl-c/src/canl.c b/emi.canl.canl-c/src/canl.c
index 42b0d0a..7d138fa 100644 (file)
--- a/emi.canl.canl-c/src/canl.c
+++ b/emi.canl.canl-c/src/canl.c
@@ -48,6 +48,11 @@ void canl_free_ctx(canl_ctx cc)
        ctx->io_ctx = NULL;
     }
 
+    if (ctx->err_msg) {
+        free(ctx->err_msg);
+        ctx->err_msg = NULL;
+    }
+
     free(ctx);
     cc = ctx = NULL;