libata-core: make sure that ata_force_tbl is freed in case of an error

Fix a potential memory leak when ata_init() encounters an error.

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/ata/libata-core.c

@@ -6098,16 +6098,20 @@ static int __init ata_init(void)
 
 	ata_wq = create_workqueue("ata");
 	if (!ata_wq)
-		return -ENOMEM;
+		goto free_force_tbl;
 
 	ata_aux_wq = create_singlethread_workqueue("ata_aux");
-	if (!ata_aux_wq) {
-		destroy_workqueue(ata_wq);
-		return -ENOMEM;
-	}
+	if (!ata_aux_wq)
+		goto free_wq;
 
 	printk(KERN_DEBUG "libata version " DRV_VERSION " loaded.\n");
 	return 0;
+
+free_wq:
+	destroy_workqueue(ata_wq);
+free_force_tbl:
+	kfree(ata_force_tbl);
+	return -ENOMEM;
 }
 
 static void __exit ata_exit(void)