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Diffstat (limited to 'net/ipv4/esp4.c')
-rw-r--r--net/ipv4/esp4.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 93322f895eab..0cbee0a666ff 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -307,7 +307,7 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
skb->data_len += tailen;
skb->truesize += tailen;
if (sk)
- atomic_add(tailen, &sk->sk_wmem_alloc);
+ refcount_add(tailen, &sk->sk_wmem_alloc);
goto out;
}
@@ -377,9 +377,11 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
esp->esph = esph;
sg_init_table(sg, esp->nfrags);
- skb_to_sgvec(skb, sg,
- (unsigned char *)esph - skb->data,
- assoclen + ivlen + esp->clen + alen);
+ err = skb_to_sgvec(skb, sg,
+ (unsigned char *)esph - skb->data,
+ assoclen + ivlen + esp->clen + alen);
+ if (unlikely(err < 0))
+ goto error;
if (!esp->inplace) {
int allocsize;
@@ -403,9 +405,11 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
spin_unlock_bh(&x->lock);
sg_init_table(dsg, skb_shinfo(skb)->nr_frags + 1);
- skb_to_sgvec(skb, dsg,
- (unsigned char *)esph - skb->data,
- assoclen + ivlen + esp->clen + alen);
+ err = skb_to_sgvec(skb, dsg,
+ (unsigned char *)esph - skb->data,
+ assoclen + ivlen + esp->clen + alen);
+ if (unlikely(err < 0))
+ goto error;
}
if ((x->props.flags & XFRM_STATE_ESN))
@@ -605,7 +609,7 @@ static void esp_input_set_header(struct sk_buff *skb, __be32 *seqhi)
* decryption.
*/
if ((x->props.flags & XFRM_STATE_ESN)) {
- esph = (void *)skb_push(skb, 4);
+ esph = skb_push(skb, 4);
*seqhi = esph->spi;
esph->spi = esph->seq_no;
esph->seq_no = XFRM_SKB_CB(skb)->seq.input.hi;
@@ -690,7 +694,9 @@ skip_cow:
esp_input_set_header(skb, seqhi);
sg_init_table(sg, nfrags);
- skb_to_sgvec(skb, sg, 0, skb->len);
+ err = skb_to_sgvec(skb, sg, 0, skb->len);
+ if (unlikely(err < 0))
+ goto out;
skb->ip_summed = CHECKSUM_NONE;