From: Hangyu Hua Date: Tue, 12 Apr 2022 02:02:57 +0000 (+0800) Subject: usb: usbip: fix a refcount leak in stub_probe() X-Git-Tag: v6.6.17~7346^2~130 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9ec4cbf1cc55d126759051acfe328d489c5d6e60;p=platform%2Fkernel%2Flinux-rpi.git usb: usbip: fix a refcount leak in stub_probe() 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 error path handling. Find this by code review. Fixes: 3ff67445750a ("usbip: fix error handling in stub_probe()") Reviewed-by: Shuah Khan Signed-off-by: Hangyu Hua Link: https://lore.kernel.org/r/20220412020257.9767-1-hbh25y@gmail.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c index d8d3892..3c6d452 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 @@ call_put_busid_priv: put_busid_priv(busid_priv); sdev_free: + usb_put_dev(udev); stub_device_free(sdev); return rc;