From d44759fd25f51ce809af2976f7a2606814890e8e Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sat, 7 Mar 2020 19:20:23 -0500
Subject: [PATCH] kill compiler warning on write(2)

---
 src/demo/input.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/demo/input.c b/src/demo/input.c
index 00440f1f3..1b76ce403 100644
--- a/src/demo/input.c
+++ b/src/demo/input.c
@@ -66,9 +66,12 @@ pass_along(const ncinput* ni){
   enqueue = &nq->next;
   pthread_mutex_unlock(&lock);
   const uint64_t eventcount = 1;
-  write(input_eventfd, &eventcount, sizeof(eventcount));
+  int ret = 0;
+  if(write(input_eventfd, &eventcount, sizeof(eventcount)) < 0){
+    ret = -1;
+  }
   pthread_cond_signal(&cond);
-  return 0;
+  return ret;
 }
 
 static int