fs/proc: clean up printks

- use pr_foo() throughout

- remove a couple of duplicated KERN_WARNINGs, via WARN(KERN_WARNING "...")

- nuke a few warnings which I've never seen happen, ever.

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index de20ec4..30b590f 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -8,6 +8,7 @@
 #include <linux/time.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/printk.h>
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/of.h>
@@ -110,8 +111,8 @@
 		if (ent->data == oldprop)
 			break;
 	if (ent == NULL) {
-		printk(KERN_WARNING "device-tree: property \"%s\" "
-		       " does not exist\n", oldprop->name);
+		pr_warn("device-tree: property \"%s\" does not exist\n",
+			oldprop->name);
 	} else {
 		ent->data = newprop;
 		ent->size = newprop->length;
@@ -153,8 +154,8 @@
 realloc:
 	fixed_name = kmalloc(fixup_len, GFP_KERNEL);
 	if (fixed_name == NULL) {
-		printk(KERN_ERR "device-tree: Out of memory trying to fixup "
-				"name \"%s\"\n", name);
+		pr_err("device-tree: Out of memory trying to fixup "
+		       "name \"%s\"\n", name);
 		return name;
 	}
 
@@ -175,8 +176,8 @@
 		goto retry;
 	}
 
-	printk(KERN_WARNING "device-tree: Duplicate name in %s, "
-			"renamed to \"%s\"\n", np->full_name, fixed_name);
+	pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n",
+		np->full_name, fixed_name);
 
 	return fixed_name;
 }