mtd: cfi_cmdset_0002: fix SEGV unlocking multiple chips

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commit 5fdfc3dbad upstream.

cfi_ppb_unlock() tries to relock all sectors that were locked before
unlocking the whole chip.
This locking used the chip start address + the FULL offset from the
first flash chip, thereby forming an illegal address. Fix that by using
the chip offset(adr).

Fixes: 1648eaaa15 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Joakim Tjernlund 2018-06-06 12:13:28 +02:00 • committed by Ben Hutchings

parent 79b53396b3

commit 16fffb8cd5

1 changed files with 3 additions and 3 deletions

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drivers/mtd/chips/cfi_cmdset_0002.c

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