linux-kernel - [PATCH 4.4 33/91] kaweth: fix firmware download

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Message-Id: <20170804231557.778643910@linuxfoundation.org>
Date:   Fri,  4 Aug 2017 16:15:29 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Oliver Neukum <oneukum@...e.com>,
        "David S. Miller" <davem@...emloft.net>,
        Amit Pundir <amit.pundir@...aro.org>
Subject: [PATCH 4.4 33/91] kaweth: fix firmware download

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

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

From: Oliver Neukum <oneukum@...e.com>

commit 60bcabd080f53561efa9288be45c128feda1a8bb upstream.

This fixes the oops discovered by the Umap2 project and Alan Stern.
The intf member needs to be set before the firmware is downloaded.

Signed-off-by: Oliver Neukum <oneukum@...e.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/usb/kaweth.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1029,6 +1029,7 @@ static int kaweth_probe(
 	kaweth = netdev_priv(netdev);
 	kaweth->dev = udev;
 	kaweth->net = netdev;
+	kaweth->intf = intf;
 
 	spin_lock_init(&kaweth->device_lock);
 	init_waitqueue_head(&kaweth->term_wait);
@@ -1139,8 +1140,6 @@ err_fw:
 
 	dev_dbg(dev, "Initializing net device.\n");
 
-	kaweth->intf = intf;
-
 	kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!kaweth->tx_urb)
 		goto err_free_netdev;