mtd: cfi: cmdset_0002: Do not allow read/write to suspend erase block.

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commit 7b70eb1439 upstream.

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.

Taken from cfi_cmdset_0001 driver.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Joakim Tjernlund 2018-03-01 14:39:41 +01:00 • committed by Greg Kroah-Hartman

parent 204e076184

commit f69cd2d30a

1 changed files with 6 additions and 3 deletions

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drivers/mtd/chips/cfi_cmdset_0002.c

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