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[PATCH 4.4 17/20] r8152: dont execute runtime suspend if the tx is not empty

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  [PATCH 4.4 17/20] r8152: dont execute runtime suspend if the tx is not empty Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-02-02 19:40 +0100

#1572604 — [PATCH 4.4 17/20] r8152: dont execute runtime suspend if the tx is not empty

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: hayeswang <hayeswang@realtek.com>


[ 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>
---
 drivers/net/usb/r8152.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3442,6 +3442,8 @@ static bool delay_autosuspend(struct r81
 	 */
 	if (!sw_linking && tp->rtl_ops.in_nway(tp))
 		return true;
+	else if (!skb_queue_empty(&tp->tx_queue))
+		return true;
 	else
 		return false;
 }

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