netdev - [PATCH] yam: fix possible memory leak in yam_init

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Message-ID: <20200604121851.63880-1-wanghai38@huawei.com>
Date:   Thu, 4 Jun 2020 20:18:51 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <jpr@...bb.org>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     <linux-hams@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <wanghai38@...wei.com>
Subject: [PATCH] yam: fix possible memory leak in yam_init_driver

If register_netdev(dev) fails, free_netdev(dev) needs
to be called, otherwise a memory leak will occur.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/net/hamradio/yam.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 71cdef9..5ab53e9 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -1133,6 +1133,7 @@ static int __init yam_init_driver(void)
 		err = register_netdev(dev);
 		if (err) {
 			printk(KERN_WARNING "yam: cannot register net device %s\n", dev->name);
+			free_netdev(dev);
 			goto error;
 		}
 		yam_devs[i] = dev;
-- 
1.8.3.1