From: Catherine Sullivan <catherine.sulli...@intel.com> We need to lock the client list around the i40e_client_release call to prevent the release from interrupting the client instances while they are being added.
Change-Id: I99993f20179aaf8730207833e7d0869d2ccffa1d Signed-off-by: Catherine Sullivan <catherine.sulli...@intel.com> Tested-by: Andrew Bowers <andrewx.bow...@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com> --- drivers/net/ethernet/intel/i40e/i40e_client.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c b/drivers/net/ethernet/intel/i40e/i40e_client.c index 0e6ac84..e1370c5 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_client.c +++ b/drivers/net/ethernet/intel/i40e/i40e_client.c @@ -980,13 +980,13 @@ int i40e_unregister_client(struct i40e_client *client) * a close for each of the client instances that were opened. * client_release function is called to handle this. */ + mutex_lock(&i40e_client_mutex); if (!client || i40e_client_release(client)) { ret = -EIO; goto out; } /* TODO: check if device is in reset, or if that matters? */ - mutex_lock(&i40e_client_mutex); if (!i40e_client_is_registered(client)) { pr_info("i40e: Client %s has not been registered\n", client->name); @@ -1005,8 +1005,8 @@ int i40e_unregister_client(struct i40e_client *client) client->name); } - mutex_unlock(&i40e_client_mutex); out: + mutex_unlock(&i40e_client_mutex); return ret; } EXPORT_SYMBOL(i40e_unregister_client); -- 2.5.5