[PATCH] kernel: pid_namespace : fix warning Using plain integer as NULL pointer

[Hariprasad Kelam]

changed passing function argument "0 to NULL" to fix below sparse
warning

kernel/pid_namespace.c:55:76: warning: Using plain integer as NULL
pointer

did changes to avoid checkpatch error "prefer a maximum 75 chars per
line"

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@xxxxxxxxx>
---
 kernel/pid_namespace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index aa6e72f..6e4afdc 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -52,7 +52,8 @@ static struct kmem_cache *create_pid_cachep(unsigned int level)
 	mutex_lock(&pid_caches_mutex);
 	/* Name collision forces to do allocation under mutex. */
 	if (!*pkc)
-		*pkc = kmem_cache_create(name, len, 0, SLAB_HWCACHE_ALIGN, 0);
+		*pkc =
+		    kmem_cache_create(name, len, 0, SLAB_HWCACHE_ALIGN, NULL);
 	mutex_unlock(&pid_caches_mutex);
 	/* current can fail, but someone else can succeed. */
 	return READ_ONCE(*pkc);
-- 
2.7.4