[net-next,v4,1/3] vsock/vmci: convert VMCI error code to -ENOMEM on receive

Commit Message

Arseniy Krasnov April 3, 2023, 11:24 a.m. UTC

This adds conversion of VMCI specific error code to general -ENOMEM. It
is preparation for the next patch, which changes af_vsock.c behaviour
on receive to pass value returned from transport to the user.

Signed-off-by: Arseniy Krasnov <[e-mail]>
Reviewed-by: Vishnu Dasa <[e-mail]>
Reviewed-by: Stefano Garzarella <[e-mail]>
---
 net/vmw_vsock/vmci_transport.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

Patch

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 36eb16a40745..a5375c97f5b0 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1831,10 +1831,17 @@  static ssize_t vmci_transport_stream_dequeue(
 	size_t len,
 	int flags)
 {
+	ssize_t err;
+
 	if (flags & MSG_PEEK)
-		return vmci_qpair_peekv(vmci_trans(vsk)->qpair, msg, len, 0);
+		err = vmci_qpair_peekv(vmci_trans(vsk)->qpair, msg, len, 0);
 	else
-		return vmci_qpair_dequev(vmci_trans(vsk)->qpair, msg, len, 0);
+		err = vmci_qpair_dequev(vmci_trans(vsk)->qpair, msg, len, 0);
+
+	if (err < 0)
+		err = -ENOMEM;
+
+	return err;
 }
 
 static ssize_t vmci_transport_stream_enqueue(