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| author | Wolfram Sang <w.sang@pengutronix.de> | 2011-11-29 15:34:08 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-01-09 18:12:42 +0000 |
| commit | 2f4478ccff7df845dc9c0f8996a96373122c4417 (patch) | |
| tree | 5100e886a3feff1c8c826f386be5821b26712baf /drivers/mtd/mtdoops.c | |
| parent | f99640dee209df4730f35a28b02693affd571ad5 (diff) | |
| download | linux-2f4478ccff7df845dc9c0f8996a96373122c4417.tar.bz2 | |
mtd: tests: stresstest: bail out if device has not enough eraseblocks
stresstest needs at least two eraseblocks. Bail out gracefully if that
condition is not met. Fixes the following 'division by zero' OOPS:
[ 619.100000] mtd_stresstest: MTD device size 131072, eraseblock size 131072, page size 2048, count of eraseblocks 1, pages per eraseblock 64, OOB size 64
[ 619.120000] mtd_stresstest: scanning for bad eraseblocks
[ 619.120000] mtd_stresstest: scanned 1 eraseblocks, 0 are bad
[ 619.130000] mtd_stresstest: doing operations
[ 619.130000] mtd_stresstest: 0 operations done
[ 619.140000] Division by zero in kernel.
...
caused by
/* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */
eb %= (ebcnt - 1);
Cc: stable@kernel.org
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/mtdoops.c')
0 files changed, 0 insertions, 0 deletions