[MTD] [NOR] Prevent erase command invocation on suspended chip

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while running stress tests we have met cfi_cmdset_0001.c driver issue.
Working on multipartitional devices with erase suspend on write
feature enabled it is possible to get erase operation invoked on chip
with suspended erase. get_chip() looses information about earlier
suspended erase and new erase operation gets issued. New erase
operations report successful completion, but blocks remain dirty
causing, for example, JFFS2 error messages like:

...
Newly-erased block contained word 0x20031985 at offset 0x00200000
Newly-erased block contained word 0x20031985 at offset 0x00280000
Newly-erased block contained word 0x20031985 at offset 0x00240000
...

The patch below fixes that issue.

Signed-off-by: Alexander Belyakov <alexander.belyakov@intel.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

...

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Alexander Belyakov 2007-11-07 11:58:07 +03:00 • committed by David Woodhouse

parent 5f4d47d5d1

commit 6c24e4161e

1 changed files with 15 additions and 0 deletions

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drivers/mtd/chips/cfi_cmdset_0001.c

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