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| author | Alexander Aring <aar@pengutronix.de> | 2016-06-21 10:27:18 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2016-07-08 12:20:57 +0200 |
| commit | 929946a471c1d5c6c595b4094f4c56bdfceee9c7 (patch) | |
| tree | 3b9f6cd3706591504034b13f537096cbcbee199b /net/6lowpan | |
| parent | a4770e1117f193c3e27f5f046cd4f8e2470f3b70 (diff) | |
| download | linux-929946a471c1d5c6c595b4094f4c56bdfceee9c7.tar.gz linux-929946a471c1d5c6c595b4094f4c56bdfceee9c7.tar.bz2 linux-929946a471c1d5c6c595b4094f4c56bdfceee9c7.zip | |
6lowpan: ndisc: fix double read unlock
This patch removes a double unlock case to accessing neighbour private
data.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/6lowpan')
| -rw-r--r-- | net/6lowpan/ndisc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/6lowpan/ndisc.c b/net/6lowpan/ndisc.c index ae1d4199aa4c..030504e031b6 100644 --- a/net/6lowpan/ndisc.c +++ b/net/6lowpan/ndisc.c @@ -135,8 +135,9 @@ static int lowpan_ndisc_opt_addr_space(const struct net_device *dev, read_unlock_bh(&neigh->lock); addr_space += __ndisc_opt_addr_space(IEEE802154_SHORT_ADDR_LEN, 0); *ha = ha_buf; + } else { + read_unlock_bh(&neigh->lock); } - read_unlock_bh(&neigh->lock); break; case NDISC_NEIGHBOUR_ADVERTISEMENT: case NDISC_NEIGHBOUR_SOLICITATION: |