From 5d7f20c045b3c74dad2c53d65e30bd4840250082 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 27 Jun 2017 15:17:19 -0700
Subject: [PATCH] usl_timer: Check for return value of write() API

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
Upstream-Status: Pending

 usl/usl_timer.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/usl/usl_timer.c b/usl/usl_timer.c
index fda752b..d8414a6 100644
--- a/usl/usl_timer.c
+++ b/usl/usl_timer.c
@@ -94,7 +94,9 @@ void usl_timer_tick(void)
 
 	if (!usl_tick_pending) {
 		usl_tick_pending = 1;
-		write(usl_tick_pipe[1], &msg, sizeof(msg));
+		if (write(usl_tick_pipe[1], &msg, sizeof(msg)) != sizeof(msg)) {
+			fprintf(stderr, "write to fd %i failed: %s\n", usl_tick_pipe[1], strerror(errno));
+		}
 	}
 }
 
-- 
2.13.2

