staging: unisys: fix NULL pointer comparisons in uislib.c

Change pointer comparisons to NULL to just use the pointer directly.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/unisys/uislib/uislib.c
Simple merge