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-rw-r--r--net/core/skbuff.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1e556d312117..366621610e76 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1292,12 +1292,14 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
{
unsigned int nr_pages = spd->nr_pages;
unsigned int poff, plen, len, toff, tlen;
- int headlen, seg;
+ int headlen, seg, error = 0;
toff = *offset;
tlen = *total_len;
- if (!tlen)
+ if (!tlen) {
+ error = 1;
goto err;
+ }
/*
* if the offset is greater than the linear part, go directly to
@@ -1339,7 +1341,8 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
* just jump directly to update and return, no point
* in going over fragments when the output is full.
*/
- if (spd_fill_page(spd, virt_to_page(p), plen, poff, skb))
+ error = spd_fill_page(spd, virt_to_page(p), plen, poff, skb);
+ if (error)
goto done;
tlen -= plen;
@@ -1369,7 +1372,8 @@ map_frag:
if (!plen)
break;
- if (spd_fill_page(spd, f->page, plen, poff, skb))
+ error = spd_fill_page(spd, f->page, plen, poff, skb);
+ if (error)
break;
tlen -= plen;
@@ -1382,7 +1386,10 @@ done:
return 0;
}
err:
- return 1;
+ /* update the offset to reflect the linear part skip, if any */
+ if (!error)
+ *offset = toff;
+ return error;
}
/*