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Diffstat (limited to 'net/caif/caif_dev.c')
-rw-r--r--net/caif/caif_dev.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index c10e5a55758d..440139706130 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -308,7 +308,7 @@ static void dev_flowctrl(struct net_device *dev, int on)
caifd_put(caifd);
}
-void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
+int caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
struct cflayer *link_support, int head_room,
struct cflayer **layer,
int (**rcv_func)(struct sk_buff *, struct net_device *,
@@ -319,11 +319,12 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
enum cfcnfg_phy_preference pref;
struct cfcnfg *cfg = get_cfcnfg(dev_net(dev));
struct caif_device_entry_list *caifdevs;
+ int res;
caifdevs = caif_device_list(dev_net(dev));
caifd = caif_device_alloc(dev);
if (!caifd)
- return;
+ return -ENOMEM;
*layer = &caifd->layer;
spin_lock_init(&caifd->flow_lock);
@@ -344,7 +345,7 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
strlcpy(caifd->layer.name, dev->name,
sizeof(caifd->layer.name));
caifd->layer.transmit = transmit;
- cfcnfg_add_phy_layer(cfg,
+ res = cfcnfg_add_phy_layer(cfg,
dev,
&caifd->layer,
pref,
@@ -354,6 +355,7 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
mutex_unlock(&caifdevs->lock);
if (rcv_func)
*rcv_func = receive;
+ return res;
}
EXPORT_SYMBOL(caif_enroll_dev);
@@ -368,6 +370,7 @@ static int caif_device_notify(struct notifier_block *me, unsigned long what,
struct cflayer *layer, *link_support;
int head_room = 0;
struct caif_device_entry_list *caifdevs;
+ int res;
cfg = get_cfcnfg(dev_net(dev));
caifdevs = caif_device_list(dev_net(dev));
@@ -393,8 +396,10 @@ static int caif_device_notify(struct notifier_block *me, unsigned long what,
break;
}
}
- caif_enroll_dev(dev, caifdev, link_support, head_room,
+ res = caif_enroll_dev(dev, caifdev, link_support, head_room,
&layer, NULL);
+ if (res)
+ cfserl_release(link_support);
caifdev->flowctrl = dev_flowctrl;
break;