staging: rtl8723bs: fix comparsions to NULL

Fix comparsions to NULL to follow kernel coding style.
x == NULL -> !x
x != NULL -> x

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Straube 2018-07-11 13:23:29 +02:00 • committed by Greg Kroah-Hartman
commit c9d19e68a7