From: Wang Hai <wanghai38@huawei.com>
Date: Thu, 4 Jun 2020 12:18:51 +0000 (+0800)
Subject: yam: fix possible memory leak in yam_init_driver
X-Git-Tag: v5.15~3655^2~15
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98749b7188affbf2900c2aab704a8853901d1139;p=platform%2Fkernel%2Flinux-starfive.git

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@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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;