netdev - [PATCH] netvsc: fix unititialized return value in variable ret

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Message-Id: <20170325141653.11238-1-colin.king@canonical.com>
Date:   Sat, 25 Mar 2017 14:16:53 +0000
From:   Colin King <colin.king@...onical.com>
To:     "K . Y . Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        devel@...uxdriverproject.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] netvsc: fix unititialized return value in variable ret

From: Colin Ian King <colin.king@...onical.com>

It is possible for an uninitialized value of ret to be returned
so fix this by initializing ret to zero.

Detected by CoverityScan, CID#1420762 ("Uninitialized scalar variable")

Fixes: 163891d7d429 ("netvsc: handle offline mtu and channel change")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/hyperv/netvsc_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index eb7ae79d47bb..f830bbbd8ad4 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -855,7 +855,7 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
 	struct hv_device *hdev = ndevctx->device_ctx;
 	struct netvsc_device_info device_info;
 	bool was_running;
-	int ret;
+	int ret = 0;
 
 	if (!nvdev || nvdev->destroy)
 		return -ENODEV;
-- 
2.11.0