SUNRPC: Fix buggy UDP transmission

xs_sendpages() may return a negative result. We sure as hell don't want to
add that to the 'tk_bytes_sent' tally...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index e97e4ca43ef3..6f32cc57f429 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -587,13 +587,13 @@ static int xs_udp_send_request(struct rpc_task *task)
         dprintk("RPC:       xs_udp_send_request(%u) = %d\n",
                         xdr->len - req->rq_bytes_sent, status);
 
-        task->tk_bytes_sent += status;
-        if (likely(status >= (int) req->rq_slen))
-                return 0;
-
-        /* Still some bytes left; set up for a retry later. */
-        if (status > 0)
+        if (status >= 0) {
+                task->tk_bytes_sent += status;
+                if (status >= req->rq_slen)
+                        return 0;
+                /* Still some bytes left; set up for a retry later. */
                 status = -EAGAIN;
+        }
 
         switch (status) {
         case -ENETUNREACH: