[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2] 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@xxxxxxxxxxxxxxxxx> --- v1 -> v2: rebased and fixed the description --- drivers/net/xen-netback/netback.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index e884ee1..5d28e64 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1206,8 +1206,10 @@ 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 = @@ -1224,8 +1226,10 @@ 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 = @@ -1347,8 +1351,10 @@ 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 = @@ -1365,8 +1371,10 @@ 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 = _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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