From 095751a6e0838a712393a74eb0b7b6559dbdbe81 Mon Sep 17 00:00:00 2001
From: Matthieu CASTET <matthieu.castet@parrot.com>
Date: Thu, 3 Jun 2010 16:14:27 +0200
Subject: [PATCH] UBI: generate random image_seq when formatting MTD devices

Generate random image_seq when attaching empty MTD device (kernel do the
ubi formating).

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---
 drivers/mtd/ubi/scan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 6b7c0c4baf0..de7b2f1c411 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -44,6 +44,7 @@
 #include <linux/slab.h>
 #include <linux/crc32.h>
 #include <linux/math64.h>
+#include <linux/random.h>
 #include "ubi.h"
 
 #ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
@@ -956,6 +957,7 @@ static int check_what_we_have(const struct ubi_device *ubi,
 			 */
 			si->is_empty = 1;
 			ubi_msg("empty MTD device detected");
+			get_random_bytes(&ubi->image_seq, sizeof(ubi->image_seq));
 		} else {
 			ubi_err("MTD device possibly contains non-UBI data, "
 				"refusing it");
-- 
2.41.0