ipv6/addrlabel: fix ip6addrlbl_get()
commit8a39e24931d119c0418721923281d2b496275ad3
authorAndrey Ryabinin <aryabinin@virtuozzo.com>
Mon, 21 Dec 2015 09:54:45 +0000 (21 12:54 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 31 Jan 2016 19:23:35 +0000 (31 11:23 -0800)
treea285d183d34ee1ca880ef2117a5a91415459db12
parent57d0c018b46ef5293da715af12c8adc32aa99847
ipv6/addrlabel: fix ip6addrlbl_get()

[ Upstream commit e459dfeeb64008b2d23bdf600f03b3605dbb8152 ]

ip6addrlbl_get() has never worked. If ip6addrlbl_hold() succeeded,
ip6addrlbl_get() will exit with '-ESRCH'. If ip6addrlbl_hold() failed,
ip6addrlbl_get() will use about to be free ip6addrlbl_entry pointer.

Fix this by inverting ip6addrlbl_hold() check.

Fixes: 2a8cc6c89039 ("[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table.")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Cong Wang <cwang@twopensource.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv6/addrlabel.c