linux-kernel - [PATCH 4.14 29/71] lan78xx: Fix failure in USB Full Speed

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Message-Id: <20180129123829.203206223@linuxfoundation.org>
Date:   Mon, 29 Jan 2018 13:56:57 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yuiko Oshino <yuiko.oshino@...rochip.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.14 29/71] lan78xx: Fix failure in USB Full Speed

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

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

From: Yuiko Oshino <yuiko.oshino@...rochip.com>


[ Upstream commit a5b1379afbfabf91e3a689e82ac619a7157336b3 ]

Fix initialize the uninitialized tx_qlen to an appropriate value when USB
Full Speed is used.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@...rochip.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/usb/lan78xx.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2396,6 +2396,7 @@ static int lan78xx_reset(struct lan78xx_
 		buf = DEFAULT_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
 		dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
 		dev->rx_qlen = 4;
+		dev->tx_qlen = 4;
 	}
 
 	ret = lan78xx_write_reg(dev, BURST_CAP, buf);