From 40196275d0e899eac49731d0c2b1dda96cafb84f Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 5 Jan 2014 15:23:54 +0100
Subject: Compile warning fixes on preflight check

---
 src/systemcmds/preflight_check/preflight_check.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/systemcmds')

diff --git a/src/systemcmds/preflight_check/preflight_check.c b/src/systemcmds/preflight_check/preflight_check.c
index 982b03782..86e4ff545 100644
--- a/src/systemcmds/preflight_check/preflight_check.c
+++ b/src/systemcmds/preflight_check/preflight_check.c
@@ -44,6 +44,7 @@
 #include <string.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <math.h>
 
 #include <systemlib/err.h>
 #include <systemlib/param/param.h>
@@ -87,9 +88,7 @@ int preflight_check_main(int argc, char *argv[])
 	/* give the system some time to sample the sensors in the background */
 	usleep(150000);
 
-
 	/* ---- MAG ---- */
-	close(fd);
 	fd = open(MAG_DEVICE_PATH, 0);
 	if (fd < 0) {
 		warn("failed to open magnetometer - start with 'hmc5883 start' or 'lsm303d start'");
-- 
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