[PATCH net] vsock/vmci: convert VMCI error code to -ENOMEM on send

From: Arseniy Krasnov
Date: Fri Mar 31 2023 - 04:00:21 EST


This adds conversion of VMCI specific error code to general -ENOMEM. It
is needed, because af_vsock.c passes error value returned from transport
to the user, which does not expect to get VMCI_ERROR_* values.

Fixes: c43170b7e157 ("vsock: return errors other than -ENOMEM to socket")
Signed-off-by: Arseniy Krasnov <AVKrasnov@xxxxxxxxxxxxxx>
Reviewed-by: Vishnu Dasa <vdasa@xxxxxxxxxx>
Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
---
net/vmw_vsock/vmci_transport.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 36eb16a40745..95cc4d79ba29 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1842,7 +1842,13 @@ static ssize_t vmci_transport_stream_enqueue(
struct msghdr *msg,
size_t len)
{
- return vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
+ ssize_t err;
+
+ err = vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
+ if (err < 0)
+ err = -ENOMEM;
+
+ return err;
}

static s64 vmci_transport_stream_has_data(struct vsock_sock *vsk)
--
2.25.1