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* [PATCH net-next 3/4] bonding: do not save non-existent device to bond primary in sysfs
@ 2014-01-09 11:20 Ding Tianhong
  2014-01-09 11:47 ` Veaceslav Falico
  0 siblings, 1 reply; 2+ messages in thread
From: Ding Tianhong @ 2014-01-09 11:20 UTC (permalink / raw)
  To: Jay Vosburgh, Veaceslav Falico, David S. Miller, Netdev

Do not save non-existent device to bond primary in sysfs.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
---
 drivers/net/bonding/bond_options.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 945a666..9b4518f 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -501,6 +501,12 @@ int bond_option_primary_set(struct bonding *bond, const char *primary)
 		goto out;
 	}
 
+	if (!__dev_get_by_name(dev_net(bond->dev), primary)) {
+		pr_err("%s: unable to set non-existent device %s to primary.\n",
+		       bond->dev->name, primary);
+		goto out;
+	}
+
 	bond_for_each_slave(bond, slave, iter) {
 		if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
 			pr_info("%s: Setting %s as primary slave.\n",
-- 
1.8.0

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2014-01-09 11:20 [PATCH net-next 3/4] bonding: do not save non-existent device to bond primary in sysfs Ding Tianhong
2014-01-09 11:47 ` Veaceslav Falico

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