From: YueHaibing <yuehaibing@huawei.com>
Date: Wed, 8 Aug 2018 19:52:57 +0800
Subject: crush: fix using plain integer as NULL warning
Git-commit: 4de17aea5ceffe6d8350fde9d903a02037b221c6
Patch-mainline: v4.19-rc1
References: FATE#324714

Fixes the following sparse warnings:

net/ceph/crush/mapper.c:517:76: warning: Using plain integer as NULL pointer
net/ceph/crush/mapper.c:728:68: warning: Using plain integer as NULL pointer

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 net/ceph/crush/mapper.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -514,7 +514,7 @@ static int crush_choose_firstn(const str
 						in, work->work[-1-in->id],
 						x, r,
 						(choose_args ?
-						 &choose_args[-1-in->id] : 0),
+						 &choose_args[-1-in->id] : NULL),
 						outpos);
 				if (item >= map->max_devices) {
 					dprintk("   bad item %d\n", item);
@@ -725,7 +725,7 @@ static void crush_choose_indep(const str
 					in, work->work[-1-in->id],
 					x, r,
 					(choose_args ?
-					 &choose_args[-1-in->id] : 0),
+					 &choose_args[-1-in->id] : NULL),
 					outpos);
 				if (item >= map->max_devices) {
 					dprintk("   bad item %d\n", item);