tree 456a28f27a8945b1025325cc2cf76a59b257c616
parent e19555ce893f7567c7a72f91dafe6bdb93f0198f
author Tomas Winkler <tomas.winkler@intel.com> 1378080664 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1380208981 -0700

mei: revamp read and write length checks

1. Return zero on zero length read and writes
2. For a too large write return -EFBIG as defined in man write(2)
EFBIG  An attempt was made to write a file that
        exceeds the implementation-defined maximum
        file size or the process's file size limit,
        or to  write  at  a  position  past  the  maximum
        allowed offset.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>