diff options
| author |   Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2018-03-01 14:39:39 +0100 |
|---|---|---|
| committer |   Boris Brezillon <boris.brezillon@bootlin.com> | 2018-04-24 17:41:18 +0200 |
| commit | 6510bbc88e3258631831ade49033537081950605 (patch) | |
| tree | 0d8762148a39f335e76992d0e937bafc657e5b69 /include/linux/mtd | |
| parent | mtd: spi-nor: cadence-quadspi: Fix page fault kernel panic (diff) | |
| download | linux-dev-6510bbc88e3258631831ade49033537081950605.tar.xz linux-dev-6510bbc88e3258631831ade49033537081950605.zip | |
mtd: cfi: cmdset_0001: Do not allow read/write to suspend erase block.
Currently it is possible to read and/or write to suspend EB's.
Writing /dev/mtdX or /dev/mtdblockX from several processes may
break the flash state machine.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/flashchip.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h index b63fa457febd..3529683f691e 100644 --- a/include/linux/mtd/flashchip.h +++ b/include/linux/mtd/flashchip.h @@ -85,6 +85,7 @@ struct flchip { unsigned int write_suspended:1; unsigned int erase_suspended:1; unsigned long in_progress_block_addr; + unsigned long in_progress_block_mask; struct mutex mutex; wait_queue_head_t wq; /* Wait on here when we're waiting for the chip |