mm: ksm use pr_err instead of printk

WARNING: Prefer: pr_err(...  to printk(KERN_ERR ...

[akpm@linux-foundation.org: remove KERN_ERR]
Signed-off-by: NPaul McQuade <paulmcquad@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

mm/ksm.c

@@ -2310,7 +2310,7 @@ static int __init ksm_init(void)
 
 	ksm_thread = kthread_run(ksm_scan_thread, NULL, "ksmd");
 	if (IS_ERR(ksm_thread)) {
-		printk(KERN_ERR "ksm: creating kthread failed\n");
+		pr_err("ksm: creating kthread failed\n");
 		err = PTR_ERR(ksm_thread);
 		goto out_free;
 	}
@@ -2318,7 +2318,7 @@ static int __init ksm_init(void)
 #ifdef CONFIG_SYSFS
 	err = sysfs_create_group(mm_kobj, &ksm_attr_group);
 	if (err) {
-		printk(KERN_ERR "ksm: register sysfs failed\n");
+		pr_err("ksm: register sysfs failed\n");
 		kthread_stop(ksm_thread);
 		goto out_free;
 	}