From: Pan Bian <bianpan2016@xxxxxxx> [ Upstream commit 025ec40b81d785a98f76b8bdb509ac10773b4f12 ] The function nfc_put_device(dev) is called twice to drop the reference to dev when there is no associated local llcp. Remove one of them to fix the bug. Fixes: 52feb444a903 ("NFC: Extend netlink interface for LTO, RW, and MIUX parameters support") Fixes: d9b8d8e19b07 ("NFC: llcp: Service Name Lookup netlink interface") Signed-off-by: Pan Bian <bianpan2016@xxxxxxx> Reviewed-by: Johan Hovold <johan@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/nfc/netlink.c | 2 -- 1 file changed, 2 deletions(-) --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -1110,7 +1110,6 @@ static int nfc_genl_llc_set_params(struc local = nfc_llcp_find_local(dev); if (!local) { - nfc_put_device(dev); rc = -ENODEV; goto exit; } @@ -1170,7 +1169,6 @@ static int nfc_genl_llc_sdreq(struct sk_ local = nfc_llcp_find_local(dev); if (!local) { - nfc_put_device(dev); rc = -ENODEV; goto exit; }