staging: vt6656: Return on isr0 when zero.

When isr0 is zero there is nothing more todo so return and
pull following code in.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/8dccc74d-d0bb-e8e7-df81-dfd81e3fd7d8@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 91b62c3..e8efdea 100644 (file)
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -196,32 +196,31 @@ static void vnt_int_process_data(struct vnt_private *priv)
        if (int_data->tsr3 & TSR_VALID)
                vnt_int_report_rate(priv, int_data->pkt3, int_data->tsr3);
 
-       if (int_data->isr0 != 0) {
-               if (int_data->isr0 & ISR_BNTX &&
-                   priv->op_mode == NL80211_IFTYPE_AP)
-                       vnt_schedule_command(priv, WLAN_CMD_BECON_SEND);
-
-               if (int_data->isr0 & ISR_TBTT &&
-                   priv->hw->conf.flags & IEEE80211_CONF_PS) {
-                       if (!priv->wake_up_count)
-                               priv->wake_up_count =
-                                       priv->hw->conf.listen_interval;
-
-                       if (priv->wake_up_count)
-                               --priv->wake_up_count;
-
-                       /* Turn on wake up to listen next beacon */
-                       if (priv->wake_up_count == 1)
-                               vnt_schedule_command(priv,
-                                                    WLAN_CMD_TBTT_WAKEUP);
-               }
-               priv->current_tsf = le64_to_cpu(int_data->tsf);
+       if (!int_data->isr0)
+               return;
+
+       if (int_data->isr0 & ISR_BNTX && priv->op_mode == NL80211_IFTYPE_AP)
+               vnt_schedule_command(priv, WLAN_CMD_BECON_SEND);
+
+       if (int_data->isr0 & ISR_TBTT &&
+           priv->hw->conf.flags & IEEE80211_CONF_PS) {
+               if (!priv->wake_up_count)
+                       priv->wake_up_count = priv->hw->conf.listen_interval;
 
-               low_stats->dot11RTSSuccessCount += int_data->rts_success;
-               low_stats->dot11RTSFailureCount += int_data->rts_fail;
-               low_stats->dot11ACKFailureCount += int_data->ack_fail;
-               low_stats->dot11FCSErrorCount += int_data->fcs_err;
+               if (priv->wake_up_count)
+                       --priv->wake_up_count;
+
+               /* Turn on wake up to listen next beacon */
+               if (priv->wake_up_count == 1)
+                       vnt_schedule_command(priv, WLAN_CMD_TBTT_WAKEUP);
        }
+
+       priv->current_tsf = le64_to_cpu(int_data->tsf);
+
+       low_stats->dot11RTSSuccessCount += int_data->rts_success;
+       low_stats->dot11RTSFailureCount += int_data->rts_fail;
+       low_stats->dot11ACKFailureCount += int_data->ack_fail;
+       low_stats->dot11FCSErrorCount += int_data->fcs_err;
 }
 
 static void vnt_start_interrupt_urb_complete(struct urb *urb)