From: hayeswang <hayeswang@realtek.com>
Date: Mon, 23 Jan 2017 06:18:43 +0000 (+0800)
Subject: r8152: don't execute runtime suspend if the tx is not empty
X-Git-Tag: v4.4.47~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e674c70bafe78f96ca63b645b7881744c82b5586;p=thirdparty%2Fkernel%2Fstable.git

r8152: don't execute runtime suspend if the tx is not empty

[ Upstream commit 6a0b76c04ec157c88ca943debf78a8ee58469f2d ]

Runtime suspend shouldn't be executed if the tx queue is not empty,
because the device is not idle.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ed512a41c5c95..fbb1867ff25c9 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3442,6 +3442,8 @@ static bool delay_autosuspend(struct r8152 *tp)
 	 */
 	if (!sw_linking && tp->rtl_ops.in_nway(tp))
 		return true;
+	else if (!skb_queue_empty(&tp->tx_queue))
+		return true;
 	else
 		return false;
 }