block: make core bits checkpatch compliant

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 5f74fec..6901eed 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -26,7 +26,8 @@
 {
 	if (ordered & (QUEUE_ORDERED_PREFLUSH | QUEUE_ORDERED_POSTFLUSH) &&
 	    prepare_flush_fn == NULL) {
-		printk(KERN_ERR "blk_queue_ordered: prepare_flush_fn required\n");
+		printk(KERN_ERR "%s: prepare_flush_fn required\n",
+								__FUNCTION__);
 		return -EINVAL;
 	}
 
@@ -47,7 +48,6 @@
 
 	return 0;
 }
-
 EXPORT_SYMBOL(blk_queue_ordered);
 
 /*
@@ -315,5 +315,4 @@
 	bio_put(bio);
 	return ret;
 }
-
 EXPORT_SYMBOL(blkdev_issue_flush);