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NFC: fix possible resource leak
author
Pan Bian
<bianpan2016@163.com>
Thu, 21 Jan 2021 15:37:45 +0000
(07:37 -0800)
committer
Jakub Kicinski
<kuba@kernel.org>
Sat, 23 Jan 2021 21:34:31 +0000
(13:34 -0800)
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>
net/nfc/netlink.c
patch
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diff --git
a/net/nfc/netlink.c
b/net/nfc/netlink.c
index
573b38a
..
e161ef2
100644
(file)
--- a/
net/nfc/netlink.c
+++ b/
net/nfc/netlink.c
@@
-852,6
+852,7
@@
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;
}