From 6136d43b8edec0193e08250744cd97691ccdbae1 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Tue, 16 Feb 2016 14:10:29 +0200
Subject: [PATCH] trace: Free symbols on program exit

This makes valgrind memleak checks with CONFIG_WPA_TRACE=y somewhat
cleaner.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
---
 src/utils/os_unix.c | 1 +
 src/utils/trace.c   | 7 +++++++
 src/utils/trace.h   | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/src/utils/os_unix.c b/src/utils/os_unix.c
index 8f8dc5b21..0118d9816 100644
--- a/src/utils/os_unix.c
+++ b/src/utils/os_unix.c
@@ -372,6 +372,7 @@ void os_program_deinit(void)
 	if (total)
 		wpa_printf(MSG_INFO, "MEMLEAK: total %lu bytes",
 			   (unsigned long) total);
+	wpa_trace_deinit();
 #endif /* WPA_TRACE */
 }
 
diff --git a/src/utils/trace.c b/src/utils/trace.c
index 8484d277d..d98c4b04c 100644
--- a/src/utils/trace.c
+++ b/src/utils/trace.c
@@ -366,4 +366,11 @@ void wpa_trace_check_ref(const void *addr)
 	}
 }
 
+
+void wpa_trace_deinit(void)
+{
+	free(syms);
+	syms = NULL;
+}
+
 #endif /* WPA_TRACE */
diff --git a/src/utils/trace.h b/src/utils/trace.h
index 43ed86c19..d1636de07 100644
--- a/src/utils/trace.h
+++ b/src/utils/trace.h
@@ -66,4 +66,6 @@ void wpa_trace_dump_funcname(const char *title, void *pc);
 
 #endif /* WPA_TRACE_BFD */
 
+void wpa_trace_deinit(void);
+
 #endif /* TRACE_H */