X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;ds=sidebyside;f=net%2Frose%2Faf_rose.c;h=08a542855654fb8981717faeb9a73ab52d3531b7;hb=b62f963e1fdf838fed91faec21228d421a834f2d;hp=d0a67bb31363de2e45468dd9d9a99739b4c29e0c;hpb=cf57a308436653f3094590202c77459aab250ff3;p=powerpc.git

diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index d0a67bb313..08a5428556 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -66,6 +66,14 @@ static struct proto_ops rose_proto_ops;
 
 ax25_address rose_callsign;
 
+/*
+ * ROSE network devices are virtual network devices encapsulating ROSE
+ * frames into AX.25 which will be sent through an AX.25 device, so form a
+ * special "super class" of normal net devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key rose_netdev_xmit_lock_key;
+
 /*
  *	Convert a ROSE address into text.
  */
@@ -1490,14 +1498,13 @@ static int __init rose_proto_init(void)
 
 	rose_callsign = null_ax25_address;
 
-	dev_rose = kmalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL);
+	dev_rose = kzalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL);
 	if (dev_rose == NULL) {
 		printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n");
 		rc = -ENOMEM;
 		goto out_proto_unregister;
 	}
 
-	memset(dev_rose, 0x00, rose_ndevs * sizeof(struct net_device*));
 	for (i = 0; i < rose_ndevs; i++) {
 		struct net_device *dev;
 		char name[IFNAMSIZ];
@@ -1516,6 +1523,7 @@ static int __init rose_proto_init(void)
 			free_netdev(dev);
 			goto fail;
 		}
+		lockdep_set_class(&dev->_xmit_lock, &rose_netdev_xmit_lock_key);
 		dev_rose[i] = dev;
 	}