From: Johan Hovold johan@kernel.org
[ Upstream commit 6af3aa57a0984e061f61308fe181a9a12359fecc ]
The driver would fail to deregister and its class device and free related resources on late probe errors.
Reported-by: syzbot+cb035c75c03dbe34b796@syzkaller.appspotmail.com Fixes: 32ecc75ded72 ("NFC: pn533: change order operations in dev registation") Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Jakub Kicinski jakub.kicinski@netronome.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nfc/pn533/usb.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c index c5289eaf17eef..e897e4d768ef7 100644 --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -547,18 +547,25 @@ static int pn533_usb_probe(struct usb_interface *interface,
rc = pn533_finalize_setup(priv); if (rc) - goto error; + goto err_deregister;
usb_set_intfdata(interface, phy);
return 0;
+err_deregister: + pn533_unregister_device(phy->priv); error: + usb_kill_urb(phy->in_urb); + usb_kill_urb(phy->out_urb); + usb_kill_urb(phy->ack_urb); + usb_free_urb(phy->in_urb); usb_free_urb(phy->out_urb); usb_free_urb(phy->ack_urb); usb_put_dev(phy->udev); kfree(in_buf); + kfree(phy->ack_buffer);
return rc; }