From: Lukas Czerner <lczerner@redhat.com>
Date: Thu, 11 Oct 2012 10:28:38 +0000 (+0200)
Subject: ext3: Avoid underflow of in ext3_trim_fs()
X-Git-Tag: v3.7-rc7~30^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae49eeec785025373e28dc24c8351c6bba688d99;p=pandora-kernel.git

ext3: Avoid underflow of in ext3_trim_fs()

Currently if len argument in ext3_trim_fs() is smaller than one block,
the 'end' variable underflow. Avoid that by returning EINVAL if len is
smaller than file system block.

Also remove useless unlikely().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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