path: root/net/core
diff options
authorJay Vosburgh <fubar@us.ibm.com>2013-05-31 11:57:27 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-31 16:56:56 -0700
commit60ba834c2fb65f2fafee47e03c258fac579d0591 (patch)
treebf20e91b8076a10a40f47e8b4e7a40cb47b5bb51 /net/core
parent9747ba6636be8a7e8ba83a1fb231d061ca318e4f (diff)
net/core: __hw_addr_unsync_one "from" address not marked synced
When an address is added to a subordinate interface (the "to" list), the address entry in the "from" list is not marked "synced" as the entry added to the "to" list is. When performing the unsync operation (e.g., dev_mc_unsync), __hw_addr_unsync_one calls __hw_addr_del_entry with the "synced" parameter set to true for the case when the address reference is being released from the "from" list. This causes a test inside to fail, with the result being that the reference count on the "from" address is not properly decremeted and the address on the "from" list will never be freed. Correct this by having __hw_addr_unsync_one call the __hw_addr_del_entry function with the "sync" flag set to false for the "remove from the from list" case. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Reviewed-by: Vlad Yasevich <vyasevic@redhat.com> Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 1f919d979db3..c858e81e6423 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -160,7 +160,8 @@ static void __hw_addr_unsync_one(struct netdev_hw_addr_list *to_list,
if (err)
- __hw_addr_del_entry(from_list, ha, false, true);
+ /* address on from list is not marked synced */
+ __hw_addr_del_entry(from_list, ha, false, false);
static int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,

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