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yam: fix possible memory leak in yam_init_driver 

[ Upstream commit 98749b7188 ]

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

Fixes: 1da177e4c3 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Wang Hai 2020-06-04 20:18:51 +08:00 committed by Greg Kroah-Hartman
parent a4d4b84377
commit 0ec407dfc1
1 changed files with 1 additions and 0 deletions
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drivers/net/hamradio/yam.c
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@ -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;