From 1adbf37cbeb8877820d0ac197f4836906c27a62c Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lorenz@px4.io>
Date: Mon, 20 Feb 2017 21:11:34 +0100
Subject: [PATCH] PWM command: Do not use return value of read

---
 src/systemcmds/pwm/pwm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/systemcmds/pwm/pwm.c b/src/systemcmds/pwm/pwm.c
index adfaff79c8..76f89b64ee 100644
--- a/src/systemcmds/pwm/pwm.c
+++ b/src/systemcmds/pwm/pwm.c
@@ -656,7 +656,7 @@ pwm_main(int argc, char *argv[])
 
 			if (ret > 0) {
 
-				read(0, &c, 1);
+				ret = read(0, &c, 1);
 
 				if (c == 0x03 || c == 0x63 || c == 'q') {
 					/* reset output to the last value */