On 4/6/22 12:17 AM, Hangyu Hua wrote:
usb_get_dev is called in stub_device_alloc. When stub_probe fails after
that, usb_put_dev needs to be used.
Thank you for the patch. Please include details on how you found
this problem.
Nit: Change this to:
usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails
after that, usb_put_dev() needs to be called to release the reference.
Fix this by moving usb_put_dev() to sdev_free
Nit: Change this to:
Fix this by moving usb_put_dev() to sdev_free error path handling.
Fixes: 3ff67445750a ("usbip: fix error handling in stub_probe()")
Signed-off-by: Hangyu Hua <hbh25y@xxxxxxxxx>
---
drivers/usb/usbip/stub_dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index d8d3892e5a69..3c6d452e3bf4 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -393,7 +393,6 @@ static int stub_probe(struct usb_device *udev)
err_port:
dev_set_drvdata(&udev->dev, NULL);
- usb_put_dev(udev);
/* we already have busid_priv, just lock busid_lock */
spin_lock(&busid_priv->busid_lock);
@@ -408,6 +407,7 @@ static int stub_probe(struct usb_device *udev)
put_busid_priv(busid_priv);
sdev_free:
+ usb_put_dev(udev);
stub_device_free(sdev);
return rc;
With the above addressed:
Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
thanks,
-- Shuah
