mtd: nand: bbt: Fix corner case in bad block table handling
authorDoyle, Patrick <pdoyle@irobot.com>
Tue, 6 Apr 2021 01:47:08 +0000 (10:47 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Jan 2022 09:54:36 +0000 (10:54 +0100)
commit25b1a6d330399e9d5f814b70523c55aebd3cb4a1
tree422b08148b9a19191e0084a419d0f09dfa02329e
parent8104e589fa4aeb2f472ca02a8702070a00f14854
mtd: nand: bbt: Fix corner case in bad block table handling

commit fd0d8d85f7230052e638a56d1bfea170c488e6bc upstream.

In the unlikely event that both blocks 10 and 11 are marked as bad (on a
32 bit machine), then the process of marking block 10 as bad stomps on
cached entry for block 11.  There are (of course) other examples.

Signed-off-by: Patrick Doyle <pdoyle@irobot.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
[<miquel.raynal@bootlin.com>: Fixed the title]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/linux-mtd/774a92693f311e7de01e5935e720a179fb1b2468.1616635406.git.ytc-mb-yfuruyama7@kioxia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mtd/nand/bbt.c