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| author | Pan Bian <bianpan2016@163.com> | 2021-01-21 07:37:45 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-03 23:23:27 +0100 |
| commit | cff34a433733ea101a2c8233a18f3f2dad82d362 (patch) | |
| tree | acf4aa7c5135cc4bae53241c6efd703c0223349e /net/nfc | |
| parent | 044c4a5b5b67a0701286841d6b07f881e44936b0 (diff) | |
| download | linux-stable-cff34a433733ea101a2c8233a18f3f2dad82d362.tar.gz linux-stable-cff34a433733ea101a2c8233a18f3f2dad82d362.tar.bz2 linux-stable-cff34a433733ea101a2c8233a18f3f2dad82d362.zip | |
NFC: fix possible resource leak
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>
Diffstat (limited to 'net/nfc')
| -rw-r--r-- | net/nfc/netlink.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 310872a9d660..4884e1987562 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -871,6 +871,7 @@ static int nfc_genl_stop_poll(struct sk_buff *skb, struct genl_info *info) if (!dev->polling) { device_unlock(&dev->dev); + nfc_put_device(dev); return -EINVAL; } |