From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 24 Jan 2006 00:32:45 +0000 (-0800)
Subject: [NET]: Fix skb fclone error path handling.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8798b3fb714477f5c88dde102c149d2b3e1d8def;p=openwrt%2Fstaging%2Fblogic.git

[NET]: Fix skb fclone error path handling.

On the error path if we allocated an fclone then we will free it in
the wrong pool.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d0732e9c8560..6766f118f070 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -135,13 +135,15 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
 struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 			    int fclone)
 {
+	kmem_cache_t *cache;
 	struct skb_shared_info *shinfo;
 	struct sk_buff *skb;
 	u8 *data;
 
+	cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;
+
 	/* Get the HEAD */
-	skb = kmem_cache_alloc(fclone ? skbuff_fclone_cache : skbuff_head_cache,
-				gfp_mask & ~__GFP_DMA);
+	skb = kmem_cache_alloc(cache, gfp_mask & ~__GFP_DMA);
 	if (!skb)
 		goto out;
 
@@ -180,7 +182,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 out:
 	return skb;
 nodata:
-	kmem_cache_free(skbuff_head_cache, skb);
+	kmem_cache_free(cache, skb);
 	skb = NULL;
 	goto out;
 }