maple_tree: fix warning comparing pointer to 0

Avoid pointer type value compared with 0 to make code clear.

./tools/testing/radix-tree/maple.c:34142:15-16: WARNING comparing pointer to 0.

Link: https://lkml.kernel.org/r/20231208020450.7003-1-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7696
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c
index 35cc8c2a10f432ec5c9164a9a6538c4be5f804fd..f1caf4bcf93740c87d49dbbc0ef9de5b56a01562 100644 (file)
--- a/tools/testing/radix-tree/maple.c
+++ b/tools/testing/radix-tree/maple.c
@@ -34139,7 +34139,7 @@ STORE, 140501948112896, 140501948116991,
        mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
        check_erase2_testset(mt, set27, ARRAY_SIZE(set27));
        rcu_barrier();
-       MT_BUG_ON(mt, 0 != mtree_load(mt, 140415537422336));
+       MT_BUG_ON(mt, NULL != mtree_load(mt, 140415537422336));
        mt_set_non_kernel(0);
        mt_validate(mt);
        mtree_destroy(mt);
@@ -34263,7 +34263,7 @@ STORE, 140501948112896, 140501948116991,
        mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
        check_erase2_testset(mt, set37, ARRAY_SIZE(set37));
        rcu_barrier();
-       MT_BUG_ON(mt, 0 != mtree_load(mt, 94637033459712));
+       MT_BUG_ON(mt, NULL != mtree_load(mt, 94637033459712));
        mt_validate(mt);
        mtree_destroy(mt);
 
@@ -34271,7 +34271,7 @@ STORE, 140501948112896, 140501948116991,
        mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
        check_erase2_testset(mt, set38, ARRAY_SIZE(set38));
        rcu_barrier();
-       MT_BUG_ON(mt, 0 != mtree_load(mt, 94637033459712));
+       MT_BUG_ON(mt, NULL != mtree_load(mt, 94637033459712));
        mt_validate(mt);
        mtree_destroy(mt);