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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 20:46:20 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 20:46:20 +0200
commit5f19ca4e014f2bd4088b78f31426f0ba3b8e6a3c (patch)
tree7357ef42d49b5ff46e1f9c7d0f873a3606b612f4 /net/mctp/route.c
parentd712d205210c494c29f33dc1d1f2ce4d7448faa9 (diff)
parent58720809f52779dc0f08e53e54b014209d13eebb (diff)
Merge 6.6-rc6 into char-misc-next
We need the char/misc fixes in here as well, to build on for other changes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mctp/route.c')
-rw-r--r--net/mctp/route.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/net/mctp/route.c b/net/mctp/route.c
index ab62fe447038a..7a47a58aa54b4 100644
--- a/net/mctp/route.c
+++ b/net/mctp/route.c
@@ -737,6 +737,8 @@ struct mctp_route *mctp_route_lookup(struct net *net, unsigned int dnet,
{
struct mctp_route *tmp, *rt = NULL;
+ rcu_read_lock();
+
list_for_each_entry_rcu(tmp, &net->mctp.routes, list) {
/* TODO: add metrics */
if (mctp_rt_match_eid(tmp, dnet, daddr)) {
@@ -747,21 +749,29 @@ struct mctp_route *mctp_route_lookup(struct net *net, unsigned int dnet,
}
}
+ rcu_read_unlock();
+
return rt;
}
static struct mctp_route *mctp_route_lookup_null(struct net *net,
struct net_device *dev)
{
- struct mctp_route *rt;
+ struct mctp_route *tmp, *rt = NULL;
- list_for_each_entry_rcu(rt, &net->mctp.routes, list) {
- if (rt->dev->dev == dev && rt->type == RTN_LOCAL &&
- refcount_inc_not_zero(&rt->refs))
- return rt;
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(tmp, &net->mctp.routes, list) {
+ if (tmp->dev->dev == dev && tmp->type == RTN_LOCAL &&
+ refcount_inc_not_zero(&tmp->refs)) {
+ rt = tmp;
+ break;
+ }
}
- return NULL;
+ rcu_read_unlock();
+
+ return rt;
}
static int mctp_do_fragment_route(struct mctp_route *rt, struct sk_buff *skb,