sunvnet - add missing rmb() for sunvnet driver

[pandora-kernel.git] / drivers / net / ethernet / sun / sunvnet.c

diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index 23c89ab..f675396 100644 (file)
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -350,14 +350,17 @@ static int vnet_walk_rx_one(struct vnet_port *port,
        if (IS_ERR(desc))
                return PTR_ERR(desc);
 
+       if (desc->hdr.state != VIO_DESC_READY)
+               return 1;
+
+       rmb();
+
        viodbg(DATA, "vio_walk_rx_one desc[%02x:%02x:%08x:%08x:%llx:%llx]\n",
               desc->hdr.state, desc->hdr.ack,
               desc->size, desc->ncookies,
               desc->cookies[0].cookie_addr,
               desc->cookies[0].cookie_size);
 
-       if (desc->hdr.state != VIO_DESC_READY)
-               return 1;
        err = vnet_rx_one(port, desc->size, desc->cookies, desc->ncookies);
        if (err == -ECONNRESET)
                return err;