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| author | Nikanth Karthikesan <knikanth@suse.de> | 2010-02-16 21:42:47 +0300 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2010-02-16 21:42:47 +0300 |
| commit | 781248c1b50c776a9ef4be1130f84ced1cba42fe (patch) | |
| tree | aa102797cde7b10623eefbeee493c36fdf2bdfe3 /drivers/md/dm-snap-persistent.c | |
| parent | 0813e22d4e0d618eac9b47bec942bf856adca4c5 (diff) | |
| download | linux-781248c1b50c776a9ef4be1130f84ced1cba42fe.tar.xz | |
dm stripe: avoid divide by zero with invalid stripe count
If a table containing zero as stripe count is passed into stripe_ctr
the code attempts to divide by zero.
This patch changes DM_TABLE_LOAD to return -EINVAL if the stripe count
is zero.
We now get the following error messages:
device-mapper: table: 253:0: striped: Invalid stripe count
device-mapper: ioctl: error adding target to table
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-snap-persistent.c')
0 files changed, 0 insertions, 0 deletions