From: Mathias Krause <minipli@googlemail.com>
Date: Fri, 31 May 2013 21:24:29 +0000 (+0200)
Subject: debugfs: write_file_bool() - ensure strtobool() operates on valid data
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~74^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3b2c8c7aa1ca860edcf0b0afa371d9eb2269c3c;p=pandora-kernel.git

debugfs: write_file_bool() - ensure strtobool() operates on valid data

In case, userland writes an empty string to a bool debugfs file, buf[]
will still be uninitialized when being passed to strtobool() making the
outcome of that function purely random.

Fix this by always zero-terminating the buffer.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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