hso: Fix URB submission -EINVAL.

Added check for IFF_UP in hso_resume, this should eliminate -EINVAL (-22)
errors caused from urb's being submitted twice, once by hso_resume
& once in hso_net_open, if suspend/resume USB power saving  mode is enabled

Signed-off-by: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 11 deletions

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index d5857321979b..2c172435495f 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2762,18 +2762,21 @@ static int hso_resume(struct usb_interface *iface)
                 if (network_table[i] &&
                     (network_table[i]->interface == iface)) {
                         hso_net = dev2net(network_table[i]);
-                        /* First transmit any lingering data, then restart the
-                         * device. */
-                        if (hso_net->skb_tx_buf) {
-                                dev_dbg(&iface->dev,
-                                        "Transmitting lingering data\n");
-                                hso_net_start_xmit(hso_net->skb_tx_buf,
-                                                   hso_net->net);
-                                hso_net->skb_tx_buf = NULL;
+                        if (hso_net->flags & IFF_UP) {
+                                /* First transmit any lingering data,
+                                   then restart the device. */
+                                if (hso_net->skb_tx_buf) {
+                                        dev_dbg(&iface->dev,
+                                                "Transmitting"
+                                                " lingering data\n");
+                                        hso_net_start_xmit(hso_net->skb_tx_buf,
+                                                           hso_net->net);
+                                        hso_net->skb_tx_buf = NULL;
+                                }
+                                result = hso_start_net_device(network_table[i]);
+                                if (result)
+                                        goto out;
                         }
-                        result = hso_start_net_device(network_table[i]);
-                        if (result)
-                                goto out;
                 }
         }