linux-kernel - [PATCH 4.9 071/108] r8152: fix rtl8152_post

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Date:   Thu, 15 Jun 2017 19:53:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hayes Wang <hayeswang@...ltek.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 071/108] r8152: fix rtl8152_post_reset function

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

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

From: hayeswang <hayeswang@...ltek.com>


[ Upstream commit 2c561b2b728ca4013e76d6439bde2c137503745e ]

The rtl8152_post_reset() should sumbit rx urb and interrupt transfer,
otherwise the rx wouldn't work and the linking change couldn't be
detected.

Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/usb/r8152.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3548,12 +3548,14 @@ static int rtl8152_post_reset(struct usb
 	if (netif_carrier_ok(netdev)) {
 		mutex_lock(&tp->control);
 		tp->rtl_ops.enable(tp);
+		rtl_start_rx(tp);
 		rtl8152_set_rx_mode(netdev);
 		mutex_unlock(&tp->control);
 		netif_wake_queue(netdev);
 	}
 
 	napi_enable(&tp->napi);
+	usb_submit_urb(tp->intr_urb, GFP_KERNEL);
 
 	if (!list_empty(&tp->rx_done))
 		napi_schedule(&tp->napi);