From de4ae580197f9d644d1d7d26aaf8d1d67caeeba4 Mon Sep 17 00:00:00 2001
From: Julian Oes <julian@oes.ch>
Date: Thu, 2 Jun 2016 15:56:22 +0100
Subject: [PATCH] px4_log: get the printf of fmt/args right

---
 src/platforms/px4_log.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/platforms/px4_log.h b/src/platforms/px4_log.h
index 565458b1e5..f9e47196e2 100644
--- a/src/platforms/px4_log.h
+++ b/src/platforms/px4_log.h
@@ -123,6 +123,8 @@ static inline void do_nothing(int level, ...)
 #include <stdint.h>
 #include <sys/cdefs.h>
 #include <stdio.h>
+#include <stdarg.h>
+
 #include <px4_defines.h>
 
 __BEGIN_DECLS
@@ -235,7 +237,10 @@ static inline void __px4_log_modulename(int level, const char *fmt, ...)
 	if (level <= __px4_log_level_current) {
 		printf(__px4__log_level_fmt __px4__log_level_arg(level));
 		printf(__px4__log_modulename_fmt __px4__log_modulename_arg);
-		printf(fmt);
+		va_list argptr;
+		va_start(argptr, fmt);
+		vprintf(fmt, argptr);
+		va_end(argptr);
 		printf("\n");
 	}
 }