Staging: most: Use NULL instead of zero

This patch fixes the warning generated by sparse
"Using plain integer as NULL pointer" by using NULL
instead of zero.

Signed-off-by: Ronit halder <ronit.crj@gmail.com>
Acked-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed