UBIFS: use pr_ helper instead of printk

Use 'pr_err()' instead of 'printk(KERN_ERR', etc.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 1e5a086..e6a9275 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -42,16 +42,15 @@
 #define UBIFS_VERSION 1
 
 /* Normal UBIFS messages */
-#define ubifs_msg(fmt, ...) \
-		printk(KERN_NOTICE "UBIFS: " fmt "\n", ##__VA_ARGS__)
+#define ubifs_msg(fmt, ...) pr_notice("UBIFS: " fmt "\n", ##__VA_ARGS__)
 /* UBIFS error messages */
-#define ubifs_err(fmt, ...)                                                  \
-	printk(KERN_ERR "UBIFS error (pid %d): %s: " fmt "\n", current->pid, \
+#define ubifs_err(fmt, ...)                                         \
+	pr_err("UBIFS error (pid %d): %s: " fmt "\n", current->pid, \
 	       __func__, ##__VA_ARGS__)
 /* UBIFS warning messages */
-#define ubifs_warn(fmt, ...)                                         \
-	printk(KERN_WARNING "UBIFS warning (pid %d): %s: " fmt "\n", \
-	       current->pid, __func__, ##__VA_ARGS__)
+#define ubifs_warn(fmt, ...)                                        \
+	pr_warn("UBIFS warning (pid %d): %s: " fmt "\n",            \
+		current->pid, __func__, ##__VA_ARGS__)
 
 /* UBIFS file system VFS magic number */
 #define UBIFS_SUPER_MAGIC 0x24051905