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ptp_pch: fix error handling in pch_probe()

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Fix to release resources when ptp_clock_register() fail instead
of return error code directly.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2013-05-22 23:59:28 +00:00 committed by David S. Miller
parent 4d2593cc65
commit 0d8c3e77e7
1 changed files with 5 additions and 3 deletions
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8
drivers/ptp/ptp_pch.c
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@ -628,9 +628,10 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id *id)
chip->caps = ptp_pch_caps;
chip->ptp_clock = ptp_clock_register(&chip->caps, &pdev->dev);
if (IS_ERR(chip->ptp_clock))
return PTR_ERR(chip->ptp_clock);
if (IS_ERR(chip->ptp_clock)) {
ret = PTR_ERR(chip->ptp_clock);
goto err_ptp_clock_reg;
}
spin_lock_init(&chip->register_lock);
@ -669,6 +670,7 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id *id)
err_req_irq:
ptp_clock_unregister(chip->ptp_clock);
err_ptp_clock_reg:
iounmap(chip->regs);
chip->regs = NULL;