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authorChristophe Kerello <christophe.kerello@foss.st.com>2022-06-16 09:39:43 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2022-06-27 07:58:48 +0200
commita315011bd3c237660436e0c796743d61acf4a7b6 (patch)
tree48a269ede9a42bbdd4e8d3666f4d21ee8424d5d1
parent9beb813521d23d7f957fc80c6603810893c8ee53 (diff)
nandflipbits: fix corrupted oobHEADmaster
If a bit is flipped in block 1 or higher, the OOB is corrupted with the OOB of block 0. Mtd_read_oob API has to take into account the block number to be able to calculate the right offset. Fixes: 9fc8db29cf62 ("mtd-utils: Add nandflipbits tool") Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
-rw-r--r--nand-utils/nandflipbits.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/nand-utils/nandflipbits.c b/nand-utils/nandflipbits.c
index aa6850f..cd66d0b 100644
--- a/nand-utils/nandflipbits.c
+++ b/nand-utils/nandflipbits.c
@@ -249,7 +249,9 @@ int main(int argc, char **argv)
bufoffs += mtd.min_io_size;
- ret = mtd_read_oob(mtd_desc, &mtd, fd, blkoffs,
+ ret = mtd_read_oob(mtd_desc, &mtd, fd,
+ bit_to_flip->block * mtd.eb_size +
+ blkoffs,
mtd.oob_size, buffer + bufoffs);
if (ret) {
fprintf(stderr, "MTD OOB read failure\n");