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net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe()

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[ Upstream commit 40752b3eae ]

This patch fixes potential double frees if register_hdlc_device() fails.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
CC: Zhao Qiang <qiang.zhao@nxp.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wen Yang 2018-12-26 16:28:30 +08:00 committed by Greg Kroah-Hartman
parent e3a5ee1382
commit df427cac84
1 changed files with 0 additions and 1 deletions
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drivers/net/wan/fsl_ucc_hdlc.c
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@ -1113,7 +1113,6 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
if (register_hdlc_device(dev)) {
ret = -ENOBUFS;
pr_err("ucc_hdlc: unable to register hdlc device\n");
free_netdev(dev);
goto free_dev;
}