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| author | Wei Yongjun <weiyj.lk@gmail.com> | 2013-12-17 03:42:09 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-19 20:58:47 +0100 |
| commit | 0c8d087c04cdcef501064552149289866e53aa6c (patch) | |
| tree | 2e3db99af1b6eace9d853e2f3c4209acfc3e64a7 /drivers/net/xen-netback/netback.c | |
| parent | net: inet_diag: zero out uninitialized idiag_{src,dst} fields (diff) | |
| download | linux-0c8d087c04cdcef501064552149289866e53aa6c.tar.xz linux-0c8d087c04cdcef501064552149289866e53aa6c.zip | |
xen-netback: fix some error return code
'err' is overwrited to 0 after maybe_pull_tail() call, so the error
code was not set if skb_partial_csum_set() call failed. Fix to return
error -EPROTO from those error handling case instead of 0.
Fixes: d52eb0d46f36 ('xen-netback: make sure skb linear area covers checksum field')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/xen-netback/netback.c')
| -rw-r--r-- | drivers/net/xen-netback/netback.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 27bbe58dcbe7..7b4fd93be76d 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1209,8 +1209,10 @@ static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb, goto out; if (!skb_partial_csum_set(skb, off, - offsetof(struct tcphdr, check))) + offsetof(struct tcphdr, check))) { + err = -EPROTO; goto out; + } if (recalculate_partial_csum) tcp_hdr(skb)->check = @@ -1227,8 +1229,10 @@ static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb, goto out; if (!skb_partial_csum_set(skb, off, - offsetof(struct udphdr, check))) + offsetof(struct udphdr, check))) { + err = -EPROTO; goto out; + } if (recalculate_partial_csum) udp_hdr(skb)->check = @@ -1350,8 +1354,10 @@ static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb, goto out; if (!skb_partial_csum_set(skb, off, - offsetof(struct tcphdr, check))) + offsetof(struct tcphdr, check))) { + err = -EPROTO; goto out; + } if (recalculate_partial_csum) tcp_hdr(skb)->check = @@ -1368,8 +1374,10 @@ static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb, goto out; if (!skb_partial_csum_set(skb, off, - offsetof(struct udphdr, check))) + offsetof(struct udphdr, check))) { + err = -EPROTO; goto out; + } if (recalculate_partial_csum) udp_hdr(skb)->check = |