Fix smatch warnings catched by Fengguang's 0-DAY system:
+ drivers/ptp/ptp_pch.c:641 pch_probe() warn: 'chip->mem_base' was not released 
on error
+ drivers/ptp/ptp_pch.c:641 pch_probe() warn: 'chip->regs' was not released on 
error

Cc: Richard Cochran <richardcoch...@gmail.com>
Cc: David S. Miller <da...@davemloft.net>
Signed-off-by: Yuanhan Liu <yuanhan....@linux.intel.com>
---
 drivers/ptp/ptp_pch.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
index e624e4d..daddd88 100644
--- a/drivers/ptp/ptp_pch.c
+++ b/drivers/ptp/ptp_pch.c
@@ -629,8 +629,10 @@ 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;
+       }
 
        spin_lock_init(&chip->register_lock);
 
@@ -669,6 +671,7 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id 
*id)
 
 err_req_irq:
        ptp_clock_unregister(chip->ptp_clock);
+err_ptp_clock:
        iounmap(chip->regs);
        chip->regs = 0;
 
-- 
1.7.7.6

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