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net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe()
[ 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>
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@ -1113,7 +1113,6 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
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if (register_hdlc_device(dev)) {
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ret = -ENOBUFS;
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pr_err("ucc_hdlc: unable to register hdlc device\n");
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free_netdev(dev);
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goto free_dev;
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}
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