[GFS2] Audit printk and kmalloc

All printk calls now have KERN_ set where required and a couple of
kmalloc(), memset(.., 0, ...) calls changed to kzalloc().

This is in response to comments from:
Pekka Enberg <penberg@cs.helsinki.fi> and
Eric Sesterhenn <snakebyte@gmx.de>

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/locking/nolock/main.c b/fs/gfs2/locking/nolock/main.c
index b716e33..7ede090 100644
--- a/fs/gfs2/locking/nolock/main.c
+++ b/fs/gfs2/locking/nolock/main.c
@@ -44,11 +44,10 @@
 		sscanf(c, "%u", &jid);
 	}
 
-	nl = kmalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
+	nl = kzalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
 	if (!nl)
 		return -ENOMEM;
 
-	memset(nl, 0, sizeof(struct nolock_lockspace));
 	nl->nl_lvb_size = min_lvb_size;
 
 	lockstruct->ls_jid = jid;
@@ -147,10 +146,8 @@
 	struct nolock_lockspace *nl = (struct nolock_lockspace *)lock;
 	int error = 0;
 
-	*lvbp = kmalloc(nl->nl_lvb_size, GFP_KERNEL);
-	if (*lvbp)
-		memset(*lvbp, 0, nl->nl_lvb_size);
-	else
+	*lvbp = kzalloc(nl->nl_lvb_size, GFP_KERNEL);
+	if (!*lvbp)
 		error = -ENOMEM;
 
 	return error;
@@ -246,11 +243,11 @@
 
 	error = gfs_register_lockproto(&nolock_ops);
 	if (error) {
-		printk("lock_nolock: can't register protocol: %d\n", error);
+		printk(KERN_WARNING "lock_nolock: can't register protocol: %d\n", error);
 		return error;
 	}
 
-	printk("Lock_Nolock (built %s %s) installed\n", __DATE__, __TIME__);
+	printk(KERN_INFO "Lock_Nolock (built %s %s) installed\n", __DATE__, __TIME__);
 	return 0;
 }