tree 45f73dde89f44a0dd67e26859effd3cbe90286d8
parent 3a76e5e09fbb51e756b4e732e3e65446f4984cf5
author Mathias Krause <minipli@googlemail.com> 1370035469 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1370292902 -0700

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>