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Date:   Sat, 6 Apr 2019 16:18:28 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] kernel: pid_namespace : fix warning Using plain integer as
 NULL pointer

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@...il.com>
---
 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

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