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[net-next,1/6] ptp: ocp: Fix the error handling path for the class device.

Message ID 20210805195248.35665-2-jonathan.lemon@gmail.com (mailing list archive)
State Accepted
Commit d12f23fa5142594796a0498d11b5f21463060dac
Delegated to: Netdev Maintainers
Headers show
Series ptp: ocp: assorted fixes. | expand

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Commit Message

Jonathan Lemon Aug. 5, 2021, 7:52 p.m. UTC
Move the put_device() call to the error handling path, so the
device is released after the .release callback, avoiding a
use-after-free.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
---
 drivers/ptp/ptp_ocp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 039d3a5c2a6f..261713c6e9a7 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -1381,7 +1381,6 @@  ptp_ocp_device_init(struct ptp_ocp *bp, struct pci_dev *pdev)
 	err = device_add(&bp->dev);
 	if (err) {
 		dev_err(&bp->dev, "device add failed: %d\n", err);
-		put_device(&bp->dev);
 		goto out;
 	}
 
@@ -1391,6 +1390,7 @@  ptp_ocp_device_init(struct ptp_ocp *bp, struct pci_dev *pdev)
 
 out:
 	ptp_ocp_dev_release(&bp->dev);
+	put_device(&bp->dev);
 	return err;
 }