From: Dongliang Mu mudongliangabcd@gmail.com
[ Upstream commit ab372c2293f5d0b279f31c8d768566ea37602dc9 ]
In hwsim_subscribe_all_others, the error handling code performs incorrectly if the second hwsim_alloc_edge fails. When this issue occurs, it goes to sub_fail, without cleaning the edges allocated before.
Fixes: f25da51fdc38 ("ieee802154: hwsim: add replacement for fakelb") Signed-off-by: Dongliang Mu mudongliangabcd@gmail.com Acked-by: Alexander Aring aahringo@redhat.com Link: https://lore.kernel.org/r/20210611015812.1626999-1-mudongliangabcd@gmail.com Signed-off-by: Stefan Schmidt stefan@datenfreihafen.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ieee802154/mac802154_hwsim.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c index be1f1a86bcd6..c66a010650e0 100644 --- a/drivers/net/ieee802154/mac802154_hwsim.c +++ b/drivers/net/ieee802154/mac802154_hwsim.c @@ -734,6 +734,8 @@ static int hwsim_subscribe_all_others(struct hwsim_phy *phy)
return 0;
+sub_fail: + hwsim_edge_unsubscribe_me(phy); me_fail: rcu_read_lock(); list_for_each_entry_rcu(e, &phy->edges, list) { @@ -741,8 +743,6 @@ me_fail: hwsim_free_edge(e); } rcu_read_unlock(); -sub_fail: - hwsim_edge_unsubscribe_me(phy); return -ENOMEM; }