From a9fd870450e82f31cba681651656276dfc1c39ac Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 19 Oct 2012 15:49:46 +0200 Subject: [PATCH] bridge: toggle device present state after freeing a bridge member to ensure that it can be reassigned to a different bridge --- bridge.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) diff --git a/bridge.c b/bridge.c index d29c3c0..1d02f83 100644 --- a/bridge.c +++ b/bridge.c @@ -188,6 +188,29 @@ bridge_remove_member(struct bridge_member *bm) device_set_present(&bst->dev, false); } +static void +bridge_free_member(struct bridge_member *bm) +{ + struct device *dev = bm->dev.dev; + + bridge_remove_member(bm); + device_remove_user(&bm->dev); + + /* + * When reloading the config and moving a device from one bridge to + * another, the other bridge may have tried to claim this device + * before it was removed here. + * Ensure that claiming the device is retried by toggling its present + * state + */ + if (dev->present) { + device_set_present(dev, false); + device_set_present(dev, true); + } + + free(bm); +} + static void bridge_member_cb(struct device_user *dev, enum device_event ev) { @@ -323,9 +346,7 @@ bridge_member_update(struct vlist_tree *tree, struct vlist_node *node_new, if (node_old) { bm = container_of(node_old, struct bridge_member, node); - bridge_remove_member(bm); - device_remove_user(&bm->dev); - free(bm); + bridge_free_member(bm); } } -- 2.30.2