Re: [PATCH v2] mm/hugetlb: fix error code in hugetlbfs_alloc_inode

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On Mon, Jul 09, 2012 at 07:02:39PM -0700, David Rientjes wrote:
>On Tue, 10 Jul 2012, Wanpeng Li wrote:
>
>> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
>> index c4b85d0..79a0f33 100644
>> --- a/fs/hugetlbfs/inode.c
>> +++ b/fs/hugetlbfs/inode.c
>> @@ -696,7 +696,7 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
>>  	p = kmem_cache_alloc(hugetlbfs_inode_cachep, GFP_KERNEL);
>>  	if (unlikely(!p)) {
>>  		hugetlbfs_inc_free_inodes(sbinfo);
>> -		return NULL;
>> +		return ERR_PTR(-ENOMEM);
>>  	}
>>  	return &p->vfs_inode;
>>  }
>
>So now you've removed Gavin Shan who already told you that it was correct 
>as written and propose yet another bogus patch which will break.  This 
>isn't professional.
>
>alloc_inode() tests for a NULL return value, not for PTR_ERR(), so you 
>would be introducing a bug if this patch were merged.  It's completely 
>correct the way it's written.

Thank you for your comments David, please ignore the patch.

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