[PATCH -next] powerpc/maple: fix comparing pointer to 0

[Joe Perches]

On Tue, 2020-01-21 at 01:47 -0600, Segher Boessenkool wrote:
> On Mon, Jan 20, 2020 at 05:52:15PM -0800, Joe Perches wrote:
> > On Tue, 2020-01-21 at 09:31 +0800, Chen Zhou wrote:
> > > Fixes coccicheck warning:
> > > ./arch/powerpc/platforms/maple/setup.c:232:15-16:
> > > 	WARNING comparing pointer to 0
> > 
> > Does anyone have or use these powerpc maple boards anymore?
> > 
> > Maybe the whole codebase should just be deleted instead.
> 
> This is used for *all* non-Apple 970 systems (not running virtualized),
> not just actual Maple.

OK, then likely this Kconfig description should be updated
(and the http://www.970eval.com link is no longer about powerpc)

$ cat arch/powerpc/platforms/maple/Kconfig
# SPDX-License-Identifier: GPL-2.0
config PPC_MAPLE
	depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
	bool "Maple 970FX Evaluation Board"
	select FORCE_PCI
	select MPIC
	select U3_DART
	select MPIC_U3_HT_IRQS
	select GENERIC_TBSYNC
	select PPC_UDBG_16550
	select PPC_970_NAP
	select PPC_NATIVE
	select PPC_RTAS
	select MMIO_NVRAM
	select ATA_NONSTANDARD if ATA
	help
	  This option enables support for the Maple 970FX Evaluation Board.
	  For more information, refer to <http://www.970eval.com>