| From d8f923c3ab96dbbb4e3c22d1afc1dc1d3b195cd8 Mon Sep 17 00:00:00 2001 |
| From: Pan Bian <bianpan2016@163.com> |
| Date: Thu, 21 Jan 2021 07:37:45 -0800 |
| Subject: NFC: fix possible resource leak |
| |
| From: Pan Bian <bianpan2016@163.com> |
| |
| commit d8f923c3ab96dbbb4e3c22d1afc1dc1d3b195cd8 upstream. |
| |
| Put the device to avoid resource leak on path that the polling flag is |
| invalid. |
| |
| Fixes: a831b9132065 ("NFC: Do not return EBUSY when stopping a poll that's already stopped") |
| Signed-off-by: Pan Bian <bianpan2016@163.com> |
| Link: https://lore.kernel.org/r/20210121153745.122184-1-bianpan2016@163.com |
| Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| net/nfc/netlink.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/net/nfc/netlink.c |
| +++ b/net/nfc/netlink.c |
| @@ -850,6 +850,7 @@ static int nfc_genl_stop_poll(struct sk_ |
| |
| if (!dev->polling) { |
| device_unlock(&dev->dev); |
| + nfc_put_device(dev); |
| return -EINVAL; |
| } |
| |
