From 7aed8c4f47915952ca3ac8a517112427e32eedc1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beat=20K=C3=BCng?= <beat-kueng@gmx.net>
Date: Thu, 9 Dec 2021 12:56:39 +0100
Subject: [PATCH] sd_bench: print errno on write failure

---
 src/systemcmds/sd_bench/sd_bench.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/systemcmds/sd_bench/sd_bench.c b/src/systemcmds/sd_bench/sd_bench.c
index 6cba81994d..b15c6b5371 100644
--- a/src/systemcmds/sd_bench/sd_bench.c
+++ b/src/systemcmds/sd_bench/sd_bench.c
@@ -41,6 +41,7 @@
 #include <stdlib.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <errno.h>
 
 #include <px4_platform_common/px4_config.h>
 #include <px4_platform_common/module.h>
@@ -226,7 +227,7 @@ void write_test(int fd, sdb_config_t *cfg, uint8_t *block, int block_size)
 			}
 
 			if ((int)written != block_size) {
-				PX4_ERR("Write error");
+				PX4_ERR("Write error: %d", errno);
 				return;
 			}