doc: fix tty example segfault (#4322)

Fixes: https://github.com/libuv/libuv/issues/4303

1 files changed, 10 insertions, 8 deletions

diff --git a/docs/code/tty/main.c b/docs/code/tty/main.c
index d44ec62c..ce360798 100644
--- a/docs/code/tty/main.c
+++ b/docs/code/tty/main.c
@@ -5,25 +5,27 @@
 
 uv_loop_t *loop;
 uv_tty_t tty;
+
 int main() {
-    loop = uv_default_loop();
+    uv_write_t req;
+    uv_buf_t buf;
+    uv_write_t req1;
+    uv_buf_t buf1;
 
+    loop = uv_default_loop();
     uv_tty_init(loop, &tty, STDOUT_FILENO, 0);
     uv_tty_set_mode(&tty, UV_TTY_MODE_NORMAL);
     
     if (uv_guess_handle(1) == UV_TTY) {
-        uv_write_t req;
-        uv_buf_t buf;
-        buf.base = "\033[41;37m";
-        buf.len = strlen(buf.base);
-        uv_write(&req, (uv_stream_t*) &tty, &buf, 1, NULL);
+        buf1.base = "\033[41;37m";
+        buf1.len = strlen(buf1.base);
+        uv_write(&req1, (uv_stream_t*) &tty, &buf1, 1, NULL);
     }
 
-    uv_write_t req;
-    uv_buf_t buf;
     buf.base = "Hello TTY\n";
     buf.len = strlen(buf.base);
     uv_write(&req, (uv_stream_t*) &tty, &buf, 1, NULL);
+
     uv_tty_reset_mode();
     return uv_run(loop, UV_RUN_DEFAULT);
 }