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>
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 6b7c0c4..de7b2f1 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 @@
*/
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");