From a14e083728be3ac3b9d13ac5542f041fb7b7b574 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Tue, 23 Feb 2016 13:07:04 +0100
Subject: [PATCH] sdlog2: Free log buffer on log stop

---
 src/modules/sdlog2/logbuffer.c | 7 +++++++
 src/modules/sdlog2/logbuffer.h | 2 ++
 src/modules/sdlog2/sdlog2.c    | 3 +++
 3 files changed, 12 insertions(+)

diff --git a/src/modules/sdlog2/logbuffer.c b/src/modules/sdlog2/logbuffer.c
index 2768994dde..02172b4154 100644
--- a/src/modules/sdlog2/logbuffer.c
+++ b/src/modules/sdlog2/logbuffer.c
@@ -143,3 +143,10 @@ void logbuffer_mark_read(struct logbuffer_s *lb, int n)
 {
 	lb->read_ptr = (lb->read_ptr + n) % lb->size;
 }
+
+void logbuffer_free(struct logbuffer_s *lb)
+{
+	if (lb->data) {
+		free(lb->data);
+	}
+}
diff --git a/src/modules/sdlog2/logbuffer.h b/src/modules/sdlog2/logbuffer.h
index 3a5e3a29f5..e5f93e1986 100644
--- a/src/modules/sdlog2/logbuffer.h
+++ b/src/modules/sdlog2/logbuffer.h
@@ -65,4 +65,6 @@ int logbuffer_get_ptr(struct logbuffer_s *lb, void **ptr, bool *is_part);
 
 void logbuffer_mark_read(struct logbuffer_s *lb, int n);
 
+void logbuffer_free(struct logbuffer_s *lb);
+
 #endif
diff --git a/src/modules/sdlog2/sdlog2.c b/src/modules/sdlog2/sdlog2.c
index cef85bee56..a733348fb8 100644
--- a/src/modules/sdlog2/sdlog2.c
+++ b/src/modules/sdlog2/sdlog2.c
@@ -771,6 +771,9 @@ void sdlog2_stop_log()
 	/* free log writer performance counter */
 	perf_free(perf_write);
 
+	/* free log buffer */
+	logbuffer_free(&lb);
+
 	mavlink_and_console_log_info(mavlink_fd, "[blackbox] recording stopped");
 
 	sdlog2_status();