w1: use pr_* instead of printk

This patch replaces all calls to the "printk" function within the main "w1"
directory by calls to the appropriate "pr_*" function thus addressing
the following warning generated by the checkpatch script:

WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ...
        then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

Signed-off-by: Fjodor Schelichow <fjodor.schelichow@hotmail.com>
Signed-off-by: Roman Sommer <romsom2@yahoo.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/w1/w1.c

@@ -1162,28 +1162,26 @@ static int __init w1_init(void)
 {
 	int retval;
 
-	printk(KERN_INFO "Driver for 1-wire Dallas network protocol.\n");
+	pr_info("Driver for 1-wire Dallas network protocol.\n");
 
 	w1_init_netlink();
 
 	retval = bus_register(&w1_bus_type);
 	if (retval) {
-		printk(KERN_ERR "Failed to register bus. err=%d.\n", retval);
+		pr_err("Failed to register bus. err=%d.\n", retval);
 		goto err_out_exit_init;
 	}
 
 	retval = driver_register(&w1_master_driver);
 	if (retval) {
-		printk(KERN_ERR
-			"Failed to register master driver. err=%d.\n",
+		pr_err("Failed to register master driver. err=%d.\n",
 			retval);
 		goto err_out_bus_unregister;
 	}
 
 	retval = driver_register(&w1_slave_driver);
 	if (retval) {
-		printk(KERN_ERR
-			"Failed to register slave driver. err=%d.\n",
+		pr_err("Failed to register slave driver. err=%d.\n",
 			retval);
 		goto err_out_master_unregister;
 	}

drivers/w1/w1_family.c

@@ -87,7 +87,7 @@ void w1_unregister_family(struct w1_family *fent)
 	w1_reconnect_slaves(fent, 0);
 
 	while (atomic_read(&fent->refcnt)) {
-		printk(KERN_INFO "Waiting for family %u to become free: refcnt=%d.\n",
+		pr_info("Waiting for family %u to become free: refcnt=%d.\n",
 				fent->fid, atomic_read(&fent->refcnt));
 
 		if (msleep_interruptible(1000))

drivers/w1/w1_int.c

@@ -50,8 +50,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 	 */
 	dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
 	if (!dev) {
-		printk(KERN_ERR
-			"Failed to allocate %zd bytes for new w1 device.\n",
+		pr_err("Failed to allocate %zd bytes for new w1 device.\n",
 			sizeof(struct w1_master));
 		return NULL;
 	}
@@ -91,7 +90,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 
 	err = device_register(&dev->dev);
 	if (err) {
-		printk(KERN_ERR "Failed to register master device. err=%d\n", err);
+		pr_err("Failed to register master device. err=%d\n", err);
 		memset(dev, 0, sizeof(struct w1_master));
 		kfree(dev);
 		dev = NULL;
@@ -120,7 +119,7 @@ int w1_add_master_device(struct w1_bus_master *master)
 	if (!(master->touch_bit && master->reset_bus) &&
 	    !(master->write_bit && master->read_bit) &&
 	    !(master->write_byte && master->read_byte && master->reset_bus)) {
-		printk(KERN_ERR "w1_add_master_device: invalid function set\n");
+		pr_err("w1_add_master_device: invalid function set\n");
 		return(-EINVAL);
 	}
 
@@ -254,7 +253,7 @@ void w1_remove_master_device(struct w1_bus_master *bm)
 	}
 
 	if (!found) {
-		printk(KERN_ERR "Device doesn't exist.\n");
+		pr_err("Device doesn't exist.\n");
 		return;
 	}
 

drivers/w1/w1_log.h

@@ -29,8 +29,8 @@
 #else
 #  define assert(expr) \
         if(unlikely(!(expr))) {				        \
-        printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n",	\
-	#expr, __FILE__, __func__, __LINE__);		        \
+		pr_err("Assertion failed! %s,%s,%s,line=%d\n",	\
+		#expr, __FILE__, __func__, __LINE__);		\
         }
 #endif
 

drivers/w1/w1_netlink.c

@@ -680,8 +680,7 @@ static void w1_cn_callback(struct cn_msg *cn, struct netlink_skb_parms *nsp)
 			if (sl)
 				dev = sl->master;
 		} else {
-			printk(KERN_NOTICE
-				"%s: cn: %x.%x, wrong type: %u, len: %u.\n",
+			pr_notice("%s: cn: %x.%x, wrong type: %u, len: %u.\n",
 				__func__, cn->id.idx, cn->id.val,
 				msg->type, msg->len);
 			err = -EPROTO;