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UBI: generate random image_seq when formatting MTD devices

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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>
This commit is contained in:
Matthieu CASTET 2010-06-03 16:14:27 +02:00 committed by Artem Bityutskiy
parent 1a49af2ca0
commit 095751a6e0
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/ubi/scan.c
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@ -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");