netifd: Check device_claim return code in all cases

Fixes observed issue a tunnel interface is reported as up although device_claim failed

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

diff --git a/interface.c b/interface.c
index 6ca1d0d..b0fe9de 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -766,8 +766,10 @@ interface_set_l3_dev(struct interface *iface, struct device *dev)
        device_add_user(&iface->l3_dev, dev);
 
        if (dev) {
-               if (claimed)
-                       device_claim(&iface->l3_dev);
+               if (claimed) {
+                       if (device_claim(&iface->l3_dev) < 0)
+                               return;
+               }
                interface_ip_set_enabled(&iface->config_ip, enabled);
        }
 }
@@ -787,8 +789,10 @@ interface_set_main_dev(struct interface *iface, struct device *dev)
                return;
        }
 
-       if (claimed)
-               device_claim(&iface->l3_dev);
+       if (claimed) {
+               if (device_claim(&iface->l3_dev) < 0)
+                       return;
+       }
 
        if (!iface->l3_dev.dev)
                interface_set_l3_dev(iface, dev);

diff --git a/proto-shell.c b/proto-shell.c
index c4039ed..9fad3a0 100644 (file)
--- a/proto-shell.c
+++ b/proto-shell.c
@@ -463,7 +463,9 @@ proto_shell_update_link(struct proto_shell_state *state, struct blob_attr *data,
                        return UBUS_STATUS_INVALID_ARGUMENT;
 
                interface_set_l3_dev(iface, dev);
-               device_claim(&iface->l3_dev);
+               if (device_claim(&iface->l3_dev) < 0)
+                       return UBUS_STATUS_UNKNOWN_ERROR;
+
                device_set_present(dev, true);
 
                interface_update_start(iface);

diff --git a/vlan.c b/vlan.c
index 28e561b..28b1441 100644 (file)
--- a/vlan.c
+++ b/vlan.c
@@ -50,7 +50,7 @@ static int vlan_set_device_state(struct device *dev, bool up)
        }
 
        ret = device_claim(&vldev->dep);
-       if (ret)
+       if (ret < 0)
                return ret;
 
        system_vlan_add(vldev->dep.dev, vldev->id);