linux-kernel - [PATCH 2/5] net/hyperv: Correct the assignment in netvsc_recv

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Message-Id: <1327941218-12547-2-git-send-email-haiyangz@microsoft.com>
Date:	Mon, 30 Jan 2012 08:33:35 -0800
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	haiyangz@...rosoft.com, kys@...rosoft.com, davem@...emloft.net,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] net/hyperv: Correct the assignment in netvsc_recv_callback()

The first assignment to variable "net" is wrong, but overridden by the
latter assignments. So the bug isn't manifested.

Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>

---
 drivers/net/hyperv/netvsc_drv.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 1a1ca6c..af25771 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -267,13 +267,10 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
 int netvsc_recv_callback(struct hv_device *device_obj,
 				struct hv_netvsc_packet *packet)
 {
-	struct net_device *net = dev_get_drvdata(&device_obj->device);
+	struct net_device *net;
 	struct sk_buff *skb;
-	struct netvsc_device *net_device;
-
-	net_device = hv_get_drvdata(device_obj);
-	net = net_device->ndev;
 
+	net = ((struct netvsc_device *)hv_get_drvdata(device_obj))->ndev;
 	if (!net) {
 		netdev_err(net, "got receive callback but net device"
 			" not initialized yet\n");
-- 
1.7.7

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