summaryrefslogtreecommitdiffstats
path: root/drivers/net/hyperv
diff options
context:
space:
mode:
authorHaiyang Zhang <haiyangz@microsoft.com>2015-01-29 12:34:49 -0800
committerDavid S. Miller <davem@davemloft.net>2015-01-31 17:31:49 -0800
commitd953ca4ddf71aa91a4596b2ff7ff1598f6ad4708 (patch)
tree34a8edb843776b391f51fa844955d2b65ba6d712 /drivers/net/hyperv
parentecf6ba83d76e0c78e89401750dc527008e14faa2 (diff)
downloadop-kernel-dev-d953ca4ddf71aa91a4596b2ff7ff1598f6ad4708.zip
op-kernel-dev-d953ca4ddf71aa91a4596b2ff7ff1598f6ad4708.tar.gz
hyperv: Fix the error processing in netvsc_send()
The existing code frees the skb in EAGAIN case, in which the skb will be retried from upper layer and used again. Also, the existing code doesn't free send buffer slot in error case, because there is no completion message for unsent packets. This patch fixes these problems. (Please also include this patch for stable trees. Thanks!) Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/netvsc.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 9f49c01..7cd4eb3 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -716,7 +716,7 @@ int netvsc_send(struct hv_device *device,
u64 req_id;
unsigned int section_index = NETVSC_INVALID_INDEX;
u32 msg_size = 0;
- struct sk_buff *skb;
+ struct sk_buff *skb = NULL;
u16 q_idx = packet->q_idx;
@@ -743,8 +743,6 @@ int netvsc_send(struct hv_device *device,
packet);
skb = (struct sk_buff *)
(unsigned long)packet->send_completion_tid;
- if (skb)
- dev_kfree_skb_any(skb);
packet->page_buf_cnt = 0;
}
}
@@ -810,6 +808,13 @@ int netvsc_send(struct hv_device *device,
packet, ret);
}
+ if (ret != 0) {
+ if (section_index != NETVSC_INVALID_INDEX)
+ netvsc_free_send_slot(net_device, section_index);
+ } else if (skb) {
+ dev_kfree_skb_any(skb);
+ }
+
return ret;
}
OpenPOWER on IntegriCloud