Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=52f095ee88d8851866bc7694ab991ca5abf21d5e
Commit:     52f095ee88d8851866bc7694ab991ca5abf21d5e
Parent:     bc34b841556aad437baf4199744e55500bfa2088
Author:     Pavel Emelyanov <[EMAIL PROTECTED]>
AuthorDate: Thu Oct 18 05:38:48 2007 -0700
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Thu Oct 18 05:38:48 2007 -0700

    [IPV6]: Fix again the fl6_sock_lookup() fixed locking
    
    YOSHIFUJI fairly pointed out, that the users increment should
    be done under the ip6_sk_fl_lock not to give IPV6_FL_A_PUT a
    chance to put this count to zero and release the flowlabel.
    
    Signed-off-by: Pavel Emelyanov <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
 net/ipv6/ip6_flowlabel.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index e55ae1a..b12cc22 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -210,9 +210,9 @@ struct ip6_flowlabel * fl6_sock_lookup(struct sock *sk, 
__be32 label)
        for (sfl=np->ipv6_fl_list; sfl; sfl = sfl->next) {
                struct ip6_flowlabel *fl = sfl->fl;
                if (fl->label == label) {
-                       read_unlock_bh(&ip6_sk_fl_lock);
                        fl->lastuse = jiffies;
                        atomic_inc(&fl->users);
+                       read_unlock_bh(&ip6_sk_fl_lock);
                        return fl;
                }
        }
-
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