Use kmemdup instead of kmalloc & memcpy in add_network_to_shadow(). Also
added  code to set 'ies_len' to zero in case of memory allocation
failure.
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>