From 95c753471245f240b8a1ab99a198dd55bc50b65b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beat=20K=C3=BCng?= <beat-kueng@gmx.net>
Date: Wed, 6 Apr 2016 10:27:07 +0200
Subject: [PATCH] ashtech gps: fix compiler warning in configure
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the warning is:
error: ignoring return value of ‘ssize_t write(int, const void*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]
---
 src/drivers/gps/ashtech.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/drivers/gps/ashtech.cpp b/src/drivers/gps/ashtech.cpp
index e541064133..c7cd66f801 100644
--- a/src/drivers/gps/ashtech.cpp
+++ b/src/drivers/gps/ashtech.cpp
@@ -671,7 +671,9 @@ int ASHTECH::configure(unsigned &baudrate)
 	for (unsigned int baud_i = 0; baud_i < sizeof(baudrates_to_try) / sizeof(baudrates_to_try[0]); baud_i++) {
 		baudrate = baudrates_to_try[baud_i];
 		set_baudrate(_fd, baudrate);
-		write(_fd, comm, sizeof(comm));
+		if (write(_fd, comm, sizeof(comm)) != sizeof(comm)) {
+			return 1;
+		}
 	}
 
 	set_baudrate(_fd, 115200);