net: add return value to packet receive handler

This allows us to handle queue full conditions rather than dropping
the packet on the floor.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net.h b/net.h
index a28827c4a7..f1cedf4d17 100644
--- a/net.h
+++ b/net.h
@@ -8,7 +8,7 @@
 typedef struct VLANClientState VLANClientState;
 
 typedef int (NetCanReceive)(VLANClientState *);
-typedef void (NetReceive)(VLANClientState *, const uint8_t *, size_t);
+typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
 typedef void (NetCleanup) (VLANClientState *);
 typedef void (LinkStatusChanged)(VLANClientState *);