From af65be5aa4d776e2f71991160c59d7951ea0cd34 Mon Sep 17 00:00:00 2001
From: murata <ma2maru@gmail.com>
Date: Sat, 18 Feb 2017 13:26:58 +0900
Subject: [PATCH] AP_Airspeed: Change from magic number 0 to definition name.

---
 libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp | 8 ++++----
 libraries/AP_Airspeed/AP_Airspeed_MS5525.cpp | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp b/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
index 9f227fc35f..b76a5bd8dd 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
+++ b/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
@@ -56,7 +56,7 @@ bool AP_Airspeed_MS4525::init()
         if (!_dev) {
             continue;
         }
-        if (!_dev->get_semaphore()->take(0)) {
+        if (!_dev->get_semaphore()->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
             continue;
         }
 
@@ -138,7 +138,7 @@ void AP_Airspeed_MS4525::_collect()
     
     _voltage_correction(press, temp);
 
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         _press_sum += press;
         _temp_sum += temp;
         _press_count++;
@@ -192,7 +192,7 @@ bool AP_Airspeed_MS4525::get_differential_pressure(float &pressure)
     if ((AP_HAL::millis() - _last_sample_time_ms) > 100) {
         return false;
     }
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         if (_press_count > 0) {
             _pressure = _press_sum / _press_count;
             _press_count = 0;
@@ -210,7 +210,7 @@ bool AP_Airspeed_MS4525::get_temperature(float &temperature)
     if ((AP_HAL::millis() - _last_sample_time_ms) > 100) {
         return false;
     }
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         if (_temp_count > 0) {
             _temperature = _temp_sum / _temp_count;
             _temp_count = 0;
diff --git a/libraries/AP_Airspeed/AP_Airspeed_MS5525.cpp b/libraries/AP_Airspeed/AP_Airspeed_MS5525.cpp
index eccb9f8d83..3f41da615f 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_MS5525.cpp
+++ b/libraries/AP_Airspeed/AP_Airspeed_MS5525.cpp
@@ -66,7 +66,7 @@ bool AP_Airspeed_MS5525::init()
         if (!dev) {
             continue;
         }
-        if (!dev->get_semaphore()->take(0)) {
+        if (!dev->get_semaphore()->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
             continue;
         }
 
@@ -213,7 +213,7 @@ void AP_Airspeed_MS5525::calculate(void)
     }
 #endif
     
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         pressure_sum += P_Pa;
         temperature_sum += Temp_C;
         press_count++;
@@ -258,7 +258,7 @@ bool AP_Airspeed_MS5525::get_differential_pressure(float &_pressure)
     if ((AP_HAL::millis() - last_sample_time_ms) > 100) {
         return false;
     }
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         if (press_count > 0) {
             pressure = pressure_sum / press_count;
             press_count = 0;
@@ -276,7 +276,7 @@ bool AP_Airspeed_MS5525::get_temperature(float &_temperature)
     if ((AP_HAL::millis() - last_sample_time_ms) > 100) {
         return false;
     }
-    if (sem->take(0)) {
+    if (sem->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
         if (temp_count > 0) {
             temperature = temperature_sum / temp_count;
             temp_count = 0;