dhcp: Reset lease on client stop

The un-reset lease variable used to be freed multiple times when the client is explicitly stopped before being destroyed.

==12374== Invalid read of size 8

==12374==    at 0x46C889: _dhcp_lease_free (dhcp-lease.c:47)
==12374==    by 0x46B5F2: l_dhcp_client_stop (dhcp.c:1220)
==12374==    by 0x46B61D: l_dhcp_client_destroy (dhcp.c:1011)
---
 ell/dhcp.c | 2 ++
 1 file changed, 2 insertions(+)

index f57f13b..57d5ae2 100644
@@ -1218,6 +1218,8 @@ LIB_EXPORT bool l_dhcp_client_stop(struct l_dhcp_client *client)
 	CLIENT_ENTER_STATE(DHCP_STATE_INIT);
 
 	_dhcp_lease_free(client->lease);
+	client->lease = NULL;
+
 	return true;
 }
 

2.13.6

Hi Tim,

Applied, thanks.

Regards,
-Denis