diff options
Diffstat (limited to 'net/can/af_can.c')
| -rw-r--r-- | net/can/af_can.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c index c48e5220bbac..c4e50852c9f4 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -525,7 +525,7 @@ void can_rx_unregister(struct net_device *dev, canid_t can_id, canid_t mask, d = find_dev_rcv_lists(dev); if (!d) { - printk(KERN_ERR "BUG: receive list not found for " + pr_err("BUG: receive list not found for " "dev %s, id %03X, mask %03X\n", DNAME(dev), can_id, mask); goto out; @@ -546,16 +546,13 @@ void can_rx_unregister(struct net_device *dev, canid_t can_id, canid_t mask, } /* - * Check for bugs in CAN protocol implementations: - * If no matching list item was found, the list cursor variable next - * will be NULL, while r will point to the last item of the list. + * Check for bugs in CAN protocol implementations using af_can.c: + * 'r' will be NULL if no matching list item was found for removal. */ if (!r) { - printk(KERN_ERR "BUG: receive list entry not found for " - "dev %s, id %03X, mask %03X\n", - DNAME(dev), can_id, mask); - r = NULL; + WARN(1, "BUG: receive list entry not found for dev %s, " + "id %03X, mask %03X\n", DNAME(dev), can_id, mask); goto out; } @@ -749,8 +746,7 @@ int can_proto_register(const struct can_proto *cp) int err = 0; if (proto < 0 || proto >= CAN_NPROTO) { - printk(KERN_ERR "can: protocol number %d out of range\n", - proto); + pr_err("can: protocol number %d out of range\n", proto); return -EINVAL; } @@ -761,8 +757,7 @@ int can_proto_register(const struct can_proto *cp) mutex_lock(&proto_tab_lock); if (proto_tab[proto]) { - printk(KERN_ERR "can: protocol %d already registered\n", - proto); + pr_err("can: protocol %d already registered\n", proto); err = -EBUSY; } else RCU_INIT_POINTER(proto_tab[proto], cp); @@ -816,11 +811,8 @@ static int can_notifier(struct notifier_block *nb, unsigned long msg, /* create new dev_rcv_lists for this device */ d = kzalloc(sizeof(*d), GFP_KERNEL); - if (!d) { - printk(KERN_ERR - "can: allocation of receive list failed\n"); + if (!d) return NOTIFY_DONE; - } BUG_ON(dev->ml_priv); dev->ml_priv = d; @@ -838,8 +830,8 @@ static int can_notifier(struct notifier_block *nb, unsigned long msg, dev->ml_priv = NULL; } } else - printk(KERN_ERR "can: notifier: receive list not " - "found for dev %s\n", dev->name); + pr_err("can: notifier: receive list not found for dev " + "%s\n", dev->name); spin_unlock(&can_rcvlists_lock); @@ -927,7 +919,7 @@ static __exit void can_exit(void) /* remove created dev_rcv_lists from still registered CAN devices */ rcu_read_lock(); for_each_netdev_rcu(&init_net, dev) { - if (dev->type == ARPHRD_CAN && dev->ml_priv){ + if (dev->type == ARPHRD_CAN && dev->ml_priv) { struct dev_rcv_lists *d = dev->ml_priv; |