svcrpc: make xpo_recvfrom return only >=0
The only errors returned from xpo_recvfrom have been -EAGAIN and
-EAFNOSUPPORT. The latter was removed by a previous patch. That leaves
only -EAGAIN, which is treated just like 0 by the caller (svc_recv).
So, just ditch -EAGAIN and return 0 instead.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index ee15663..3e31730 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -743,7 +743,7 @@
svc_xprt_received(xprt);
/* No data, incomplete (TCP) read, or accept() */
- if (len == 0 || len == -EAGAIN)
+ if (len <= 0)
goto out;
clear_bit(XPT_OLD, &xprt->xpt_flags);