From 017321cf390045dd4c4afc4a232995ea50bcf66d Mon Sep 17 00:00:00 2001
From: Liu ShuoX <shuox.liu@intel.com>
Date: Wed, 12 Mar 2014 21:24:44 +0800
Subject: [PATCH] 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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Reading git-format-patch failed