3.16.61-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx> commit f1ce87f6080b1dda7e7b1eda3da332add19d87b9 upstream. cfi_ppb_unlock() walks all flash chips when unlocking sectors, avoid walking chips unaffected by the unlock operation. Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking") Signed-off-by: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- drivers/mtd/chips/cfi_cmdset_0002.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -2356,6 +2356,8 @@ static int __maybe_unused cfi_ppb_unlock i++; if (adr >> cfi->chipshift) { + if (offset >= (ofs + len)) + break; adr = 0; chipnum++;