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Date:	Sat, 24 Nov 2012 01:02:09 +0100
From:	Sven Eckelmann <>
	Sven Eckelmann <>
Subject: [PATCH 4/7] batman-adv: Remove slave interfaces before removing master interface

The master (soft-interface) should remove the references to its soft-interfaces
before it gets destroyed. Otherwise the usage count of the interface will not be
zero and therefore the net_device cannot be removed. This leads to an endless
hang of the unregister call.

Signed-off-by: Sven Eckelmann <>
 net/batman-adv/soft-interface.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 8467b9f..5fd0560 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -546,6 +546,14 @@ struct net_device *batadv_softif_create(const char *name)
 void batadv_softif_destroy(struct net_device *soft_iface)
+	struct batadv_hard_iface *hard_iface;
+	list_for_each_entry(hard_iface, &batadv_hardif_list, list) {
+		if (hard_iface->soft_iface == soft_iface)
+			batadv_hardif_disable_interface(hard_iface,
+	}

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