netdev - [PATCH net-next] skbuff: Add BUG_ON in skb

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Message-Id: <1502280278-9970-2-git-send-email-xiangxia.m.yue@gmail.com>
Date:   Wed,  9 Aug 2017 05:04:38 -0700
From:   Tonghao Zhang <xiangxia.m.yue@...il.com>
To:     netdev@...r.kernel.org
Cc:     Tonghao Zhang <xiangxia.m.yue@...il.com>
Subject: [PATCH net-next] skbuff: Add BUG_ON in skb_init.

When initializing the skbuff SLAB cache, we should make
sure it is successful. Adding BUG_ON to check it and
init_inodecache() is in the same case.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@...il.com>
---
 net/core/skbuff.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 42b62c716a33..9513de519870 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3904,6 +3904,8 @@ void __init skb_init(void)
 						0,
 						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
 						NULL);
+	BUG_ON(skbuff_head_cache == NULL);
+	BUG_ON(skbuff_fclone_cache == NULL);
 }

 static int
-- 
2.13.4