netdev - [PATCH net-next v2 2/4] ptp: ocp: Fix error path for pci_ocp_device

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Date:   Mon, 16 Aug 2021 15:13:35 -0700
From:   Jonathan Lemon <jonathan.lemon@...il.com>
To:     kuba@...nel.org, davem@...emloft.net, richardcochran@...il.com
Cc:     kernel-team@...com, netdev@...r.kernel.org
Subject: [PATCH net-next v2 2/4] ptp: ocp: Fix error path for pci_ocp_device_init()

If ptp_ocp_device_init() fails, pci_disable_device() is skipped.
Fix the error handling so this case is covered.  Update ptp_ocp_remove()
so the normal exit path is identical.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: 773bda964921 ("ptp: ocp: Expose various resources on the
timecard.")
Signed-off-by: Jonathan Lemon <jonathan.lemon@...il.com>
---
 drivers/ptp/ptp_ocp.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 9e4317d1184f..caf9b37c5eb1 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -1438,7 +1438,7 @@ ptp_ocp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	bp = devlink_priv(devlink);
 	err = ptp_ocp_device_init(bp, pdev);
 	if (err)
-		goto out_unregister;
+		goto out_disable;
 
 	/* compat mode.
 	 * Older FPGA firmware only returns 2 irq's.
@@ -1476,8 +1476,9 @@ ptp_ocp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 out:
 	ptp_ocp_detach(bp);
-	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
+out_disable:
+	pci_disable_device(pdev);
 out_unregister:
 	devlink_unregister(devlink);
 out_free:
@@ -1493,8 +1494,8 @@ ptp_ocp_remove(struct pci_dev *pdev)
 	struct devlink *devlink = priv_to_devlink(bp);
 
 	ptp_ocp_detach(bp);
-	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
+	pci_disable_device(pdev);
 
 	devlink_unregister(devlink);
 	devlink_free(devlink);
-- 
2.31.1