[PATCH BlueZ] tools/mesh-cfgclient: Fix segfault on remote node reset

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This fixes a segfault that is caused by freeeing non-allocated memory.
Happens upon the removal of a remote node when remote's net key and/or
app key queues are destroyed.

__GI___libc_free (mem=0x1) at malloc.c:3102
    destroy=destroy@entry=0x55761f63a3b0 <l_free>) at ell/queue.c:107
    destroy=destroy@entry=0x55761f63a3b0 <l_free>) at ell/queue.c:82
    at tools/mesh/remote.c:140
    at tools/mesh/cfgcli.c:764
    at tools/mesh/cfgcli.c:764
    msg=0x5576213aa6f0, user_data=<optimized out>)
    at tools/mesh-cfgclient.c:1522
    dbus=dbus@entry=0x55762132f860, message=message@entry=0x5576213aa6f0)
    at ell/dbus-service.c:1793
    user_data=0x55762132f860) at ell/dbus.c:285
    user_data=0x55762132f940) at ell/io.c:126
---
 tools/mesh/remote.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/mesh/remote.c b/tools/mesh/remote.c
index 2a8f747d6..c74f0bec1 100644
--- a/tools/mesh/remote.c
+++ b/tools/mesh/remote.c
@@ -134,10 +134,11 @@ uint8_t remote_del_node(uint16_t unicast)
 		l_queue_destroy(rmt->els[i], NULL);
 		remote_add_blacklisted_address(unicast + i, iv_index, true);
 	}
+
 	l_free(rmt->els);
 
-	l_queue_destroy(rmt->net_keys, l_free);
-	l_queue_destroy(rmt->app_keys, l_free);
+	l_queue_destroy(rmt->net_keys, NULL);
+	l_queue_destroy(rmt->app_keys, NULL);
 	l_free(rmt);
 
 	mesh_db_del_node(unicast);
-- 
2.26.2




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