From: Liu ShuoX <shuox.liu@intel.com>
Date: Wed, 12 Mar 2014 13:24:44 +0000 (+0800)
Subject: pstore: Fix buffer overflow while write offset equal to buffer size
X-Git-Tag: v3.15-rc1~92^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=017321cf390045dd4c4afc4a232995ea50bcf66d;p=pandora-kernel.git

pstore: Fix buffer overflow while write offset equal to buffer size

In case new offset is equal to prz->buffer_size, it won't wrap at this
time and will return old(overflow) value next time.

Signed-off-by: Liu ShuoX <shuox.liu@intel.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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