diff --git a/block/bdev.c b/block/bdev.c
index 4628dcb1da8a..80ce9e10828e 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -839,8 +839,9 @@ struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
 		return ERR_PTR(-ENOMEM);
 	bdev = blkdev_get_by_dev(dev, mode, holder, hops);
 	if (IS_ERR(bdev)) {
+		printk("%p, %s\n", handle, __func__);
 		kfree(handle);
-		return ERR_CAST(bdev);
+		return NULL;
 	}
 	handle->bdev = bdev;
 	handle->holder = holder;
@@ -949,6 +950,7 @@ EXPORT_SYMBOL(blkdev_put);
 
 void bdev_release(struct bdev_handle *handle)
 {
+	printk("%p, %s\n", handle, __func__);
 	blkdev_put(handle->bdev, handle->holder);
 	kfree(handle);
 }
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index c911d838b8ec..1d9634c18532 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1102,7 +1102,8 @@ int lmLogOpen(struct super_block *sb)
 
 	bdev_handle = bdev_open_by_dev(sbi->logdev,
 			BLK_OPEN_READ | BLK_OPEN_WRITE, log, NULL);
-	if (IS_ERR(bdev_handle)) {
+	printk("%p, %s\n", bdev_handle, __func__);
+	if (IS_ERR_OR_NULL(bdev_handle)) {
 		rc = PTR_ERR(bdev_handle);
 		goto free;
 	}
@@ -1141,6 +1142,7 @@ int lmLogOpen(struct super_block *sb)
 	lbmLogShutdown(log);
 
       close:		/* close external log device */
+	printk("%p, %p, %s\n", log, bdev_handle, __func__);
 	bdev_release(bdev_handle);
 
       free:		/* free log descriptor */
@@ -1485,6 +1487,7 @@ int lmLogClose(struct super_block *sb)
 	bdev_handle = log->bdev_handle;
 	rc = lmLogShutdown(log);
 
+	printk("%p, %p, %s\n", log, bdev_handle, __func__);
 	bdev_release(bdev_handle);
 
 	kfree(log);
@@ -2113,6 +2116,7 @@ static void lbmStartIO(struct lbuf * bp)
 
 	jfs_info("lbmStartIO");
 
+	printk("%p, %s\n", log->bdev_handle, __func__);
 	bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_WRITE | REQ_SYNC,
 			GFP_NOFS);
 	bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);