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NFC: fix possible resource leak

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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>
This commit is contained in:
Pan Bian 2021-01-21 07:37:45 -08:00 committed by Greg Kroah-Hartman
parent c929c76e98
commit 9a4d367b27
1 changed files with 1 additions and 0 deletions
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net/nfc/netlink.c
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@ -860,6 +860,7 @@ 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;
}