diff mbox

VSOCK: Only check error on skb_recv_datagram when skb is NULL

Message ID 1461049132-59927-1-git-send-email-jhansen@vmware.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Jorgen Hansen April 19, 2016, 6:58 a.m. UTC 
If skb_recv_datagram returns an skb, we should ignore the err
value returned. Otherwise, datagram receives will return EAGAIN
when they have to wait for a datagram.

Acked-by: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Jorgen Hansen <jhansen@vmware.com>
---
 net/vmw_vsock/vmci_transport.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

Comments

David Miller April 20, 2016, 12:42 a.m. UTC | #1 
From: Jorgen Hansen <jhansen@vmware.com>
Date: Mon, 18 Apr 2016 23:58:52 -0700

> If skb_recv_datagram returns an skb, we should ignore the err
> value returned. Otherwise, datagram receives will return EAGAIN
> when they have to wait for a datagram.
> 
> Acked-by: Adit Ranadive <aditr@vmware.com>
> Signed-off-by: Jorgen Hansen <jhansen@vmware.com>

Applied.
diff mbox

Patch

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 662bdd2..5621473 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1735,11 +1735,8 @@  static int vmci_transport_dgram_dequeue(struct vsock_sock *vsk,
 	/* Retrieve the head sk_buff from the socket's receive queue. */
 	err = 0;
 	skb = skb_recv_datagram(&vsk->sk, flags, noblock, &err);
-	if (err)
-		return err;
-
 	if (!skb)
-		return -EAGAIN;
+		return err;
 
 	dg = (struct vmci_datagram *)skb->data;
 	if (!dg)
@@ -2154,7 +2151,7 @@  module_exit(vmci_transport_exit);
 
 MODULE_AUTHOR("VMware, Inc.");
 MODULE_DESCRIPTION("VMCI transport for Virtual Sockets");
-MODULE_VERSION("1.0.3.0-k");
+MODULE_VERSION("1.0.4.0-k");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("vmware_vsock");
 MODULE_ALIAS_NETPROTO(PF_VSOCK);