watchdog: Use pr_<fmt> and pr_<level>

Use the current logging styles.

Make sure all output has a prefix.
Add missing newlines.
Remove now unnecessary PFX, NAME, and miscellaneous other #defines.
Coalesce formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index c7e17ce..49e1b1c 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -3,6 +3,8 @@
  * Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net)
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -189,7 +191,7 @@
 
 	p->regs = of_ioremap(&op->resource[0], 0, 2, DRIVER_NAME);
 	if (!p->regs) {
-		printk(KERN_ERR PFX "Cannot map registers.\n");
+		pr_err("Cannot map registers\n");
 		goto out_free;
 	}
 	/* Make miscdev useable right away */
@@ -197,12 +199,12 @@
 
 	err = misc_register(&riowd_miscdev);
 	if (err) {
-		printk(KERN_ERR PFX "Cannot register watchdog misc device.\n");
+		pr_err("Cannot register watchdog misc device\n");
 		goto out_iounmap;
 	}
 
-	printk(KERN_INFO PFX "Hardware watchdog [%i minutes], "
-	       "regs at %p\n", riowd_timeout, p->regs);
+	pr_info("Hardware watchdog [%i minutes], regs at %p\n",
+		riowd_timeout, p->regs);
 
 	dev_set_drvdata(&op->dev, p);
 	return 0;