4.19-stable review patch. If anyone has any objections, please let me know.
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From: Frieder Schrempf frieder.schrempf@kontron.de
commit 40b412897ccb4b98b2cfb2a0aaabed58dd9e2086 upstream.
Fix the size of the buffer allocated to store the in-memory BBT. This bug was previously hidden by a different bug, that was fixed in commit d098093ba06e ("mtd: nand: Fix nanddev_neraseblocks()").
Fixes: 9c3736a3de21 ("mtd: nand: Add core infrastructure to deal with NAND devices") Cc: stable@vger.kernel.org Signed-off-by: Frieder Schrempf frieder.schrempf@kontron.de Acked-by: Miquel Raynal miquel.raynal@bootlin.com Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mtd/nand/bbt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mtd/nand/bbt.c +++ b/drivers/mtd/nand/bbt.c @@ -27,7 +27,8 @@ int nanddev_bbt_init(struct nand_device unsigned int nwords = DIV_ROUND_UP(nblocks * bits_per_block, BITS_PER_LONG);
- nand->bbt.cache = kzalloc(nwords, GFP_KERNEL); + nand->bbt.cache = kcalloc(nwords, sizeof(*nand->bbt.cache), + GFP_KERNEL); if (!nand->bbt.cache) return -ENOMEM;