From: Jonthan Brassow <jbrassow@redhat.com>
Date: Sun, 25 Sep 2011 22:26:19 +0000 (+0100)
Subject: dm: raid fix write_mostly arg validation
X-Git-Tag: v3.1-rc10~20^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8232480944d173378082ebb2cac8a3207c08cf31;p=pandora-kernel.git

dm: raid fix write_mostly arg validation

Fix off-by-one error in validation of write_mostly.

The user-supplied value given for the 'write_mostly' argument must be an
index starting at 0.  The validation of the supplied argument failed to
check for 'N' ('>' vs '>='), which would have caused an access beyond the
end of the array.

Reported-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

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