From 4a1e9d610b45bdc6f260a080ed17d9c19122aa95 Mon Sep 17 00:00:00 2001
From: Julian Oes <julian@oes.ch>
Date: Tue, 22 Mar 2016 20:38:11 +0100
Subject: [PATCH] param_shmem: fix the "unknown param id" bug

The recent workaround to flag all params as used did not include
param_for_used_index(). However, this function got used in the case if
one param had not been received by QGC and was requested by its index.
---
 src/modules/systemlib/param/param_shmem.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/modules/systemlib/param/param_shmem.c b/src/modules/systemlib/param/param_shmem.c
index a8c3c9d70b..f011f5ddae 100644
--- a/src/modules/systemlib/param/param_shmem.c
+++ b/src/modules/systemlib/param/param_shmem.c
@@ -344,6 +344,7 @@ param_for_index(unsigned index)
 param_t
 param_for_used_index(unsigned index)
 {
+#if 0
 	int count = get_param_info_count();
 
 	if (count && index < count) {
@@ -368,6 +369,9 @@ param_for_used_index(unsigned index)
 	}
 
 	return PARAM_INVALID;
+#else
+	return param_for_index(index);
+#endif
 }
 
 int