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msm: net: add the fix for the skb data alloc fail case 

In some cases, the skb->data alloc fail, then it will get a wrong
point value from the kmalloc_caches array. The value is little then
0x10,but in the slab reference, these value are all zero value. So
change the zero judgement.

CRs-Fixed: 573650
Change-Id: Iba138838821f515b131029cf240a5a99959bb2ff
Signed-off-by: Pan Fang <fangpan@codeaurora.org>
This commit is contained in:
Pan Fang 2013-11-14 23:17:42 +08:00
parent 1d6d830efd
commit de51e415cc
1 changed files with 1 additions and 1 deletions
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2
net/core/skbuff.c
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@ -252,7 +252,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
size = SKB_DATA_ALIGN(size);
size += SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
data = kmalloc_reserve(size, gfp_mask, node, &pfmemalloc);
if (!data)
if (unlikely(ZERO_OR_NULL_PTR(data)))
goto nodata;
/* kmalloc(size) might give us more room than requested.
* Put skb_shared_info exactly at the end of allocated zone,