There is a dereference before checking for NULL bug here. Generally
free() functions should accept NULL pointers. For example, fl_create()
can pass a NULL pointer to fl_free() on the error path.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Only needed on linux-next.
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index c836a6a..90bbefb 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -91,12 +91,9 @@ static struct ip6_flowlabel *fl_lookup(struct net *net, __be32 label)
static void fl_free(struct ip6_flowlabel *fl)
{
- switch (fl->share) {
- case IPV6_FL_S_PROCESS:
- put_pid(fl->owner.pid);
- break;
- }
if (fl) {
+ if (fl->share == IPV6_FL_S_PROCESS)
+ put_pid(fl->owner.pid);
release_net(fl->fl_net);
kfree(fl->opt);
}
--
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