[PATCH] olympic: check return code for /proc entry creation

From: Kirk True <kernel@kirkandsheila.com>

The IBM Olympic driver assumes that the call to create_proc_read_entry 
always succeeds. This patch simply logs appropriately whether it was
actually created or not.

Also added KERN_* constants as per Christophe Lucas' recommendation.

Signed-off-by: Kirk True <kirk@kirkandsheila.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/net/tokenring/olympic.c
===================================================================
--- linux-kj.orig/drivers/net/tokenring/olympic.c	2005-10-28 16:28:51.000000000 +0400
+++ linux-kj/drivers/net/tokenring/olympic.c	2005-10-28 16:29:56.000000000 +0400
@@ -267,11 +267,16 @@ static int __devinit olympic_probe(struc
 	register_netdev(dev) ; 
 	printk("Olympic: %s registered as: %s\n",olympic_priv->olympic_card_name,dev->name);
 	if (olympic_priv->olympic_network_monitor) { /* Must go after register_netdev as we need the device name */ 
+		struct proc_dir_entry *proc_dir_entry;
 		char proc_name[20] ; 
 		strcpy(proc_name,"net/olympic_") ; 
 		strcat(proc_name,dev->name) ; 
-		create_proc_read_entry(proc_name,0,NULL,olympic_proc_info,(void *)dev) ; 
-		printk("Olympic: Network Monitor information: /proc/%s\n",proc_name); 
+		proc_dir_entry = create_proc_read_entry(proc_name,0,NULL,olympic_proc_info,dev);
+
+		if (proc_dir_entry)
+			printk(KERN_INFO "Olympic: Network Monitor information: /proc/%s\n",proc_name);
+		else
+			printk(KERN_WARNING "Olympic: Network Monitor information: /proc/%s could not be created\n",proc_name);
 	}
 	return  0 ;