diff options
| author | Joakim Tjernlund <joakim.tjernlund@infinera.com> | 2018-06-06 12:13:27 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-06-22 00:35:11 +0200 |
| commit | f93aa8c4de307069c270b2d81741961162bead6c (patch) | |
| tree | d1651ebb5aa491ec2cc1bab9f2760b1c8cc632d5 /drivers/mtd/chips | |
| parent | fe3dd97dd66bb7fb23b8077a3803d2f951e60b00 (diff) | |
| download | linux-f93aa8c4de307069c270b2d81741961162bead6c.tar.bz2 | |
mtd: cfi_cmdset_0002: Use right chip in do_ppb_xxlock()
do_ppb_xxlock() fails to add chip->start when querying for lock status
(and chip_ready test), which caused false status reports.
Fix that by adding adr += chip->start and adjust call sites
accordingly.
Fixes: 1648eaaa1575 ("mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) locking")
Cc: stable@vger.kernel.org
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd/chips')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index a0c655628d6d..aa09d5155429 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -2544,8 +2544,9 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, unsigned long timeo; int ret; + adr += chip->start; mutex_lock(&chip->mutex); - ret = get_chip(map, chip, adr + chip->start, FL_LOCKING); + ret = get_chip(map, chip, adr, FL_LOCKING); if (ret) { mutex_unlock(&chip->mutex); return ret; @@ -2563,8 +2564,8 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, if (thunk == DO_XXLOCK_ONEBLOCK_LOCK) { chip->state = FL_LOCKING; - map_write(map, CMD(0xA0), chip->start + adr); - map_write(map, CMD(0x00), chip->start + adr); + map_write(map, CMD(0xA0), adr); + map_write(map, CMD(0x00), adr); } else if (thunk == DO_XXLOCK_ONEBLOCK_UNLOCK) { /* * Unlocking of one specific sector is not supported, so we @@ -2602,7 +2603,7 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, map_write(map, CMD(0x00), chip->start); chip->state = FL_READY; - put_chip(map, chip, adr + chip->start); + put_chip(map, chip, adr); mutex_unlock(&chip->mutex); return ret; |