Re: [PATCH] net: handle the return value of pskb_carve_frag_list() correctly

From: linmiaohe
Date: Sun Aug 16 2020 - 22:27:28 EST


David Miller <davem@xxxxxxxxxxxxx> wrote:
>> + /* split line is in frag list */
>> + if (k == 0 && pskb_carve_frag_list(skb, shinfo, off - pos, gfp_mask)) {
>> + /* skb_frag_unref() is not needed here as shinfo->nr_frags = 0. */
>> + if (skb_has_frag_list(skb))
>> + kfree_skb_list(skb_shinfo(skb)->frag_list);
>> + kfree(data);
>> + return -ENOMEM;
>
>On error, the caller is going to kfree_skb(skb) which will take care of the frag list.
>

I'am sorry for my careless. The caller will take care of the frag list and kfree(data) is enough here.
Many thanks for review, will send v2 soon.