From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Fri, 6 Jan 2017 13:05:17 +0000 (+0100)
Subject: rt2x00: do not flush empty queue
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=51583248187cf224485327aed54b64c348f415dc;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

rt2x00: do not flush empty queue

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 3cc1384ed2fc..ecc96312a370 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -743,7 +743,8 @@ void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		return;
 
 	tx_queue_for_each(rt2x00dev, queue)
-		rt2x00queue_flush_queue(queue, drop);
+		if (!rt2x00queue_empty(queue))
+			rt2x00queue_flush_queue(queue, drop);
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_flush);