linux-kernel - [PATCH 1/5] Make sure that ata_force

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Date:	Sat, 26 Jul 2008 08:23:23 +0200
From:	Elias Oltmanns <eo@...ensachen.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>, Jeff Garzik <jeff@...zik.org>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>
Cc:	Pavel Machek <pavel@....cz>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] Make sure that ata_force_tbl is freed in case of an error

This is just a trivial fix of a potential memory leak when ata_init()
encounters an error.

Signed-off-by: Elias Oltmanns <eo@...ensachen.de>
---

 drivers/ata/libata-core.c |   14 +++++++++-----
 1 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 9bef1a8..0a2f921 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6088,16 +6088,20 @@ 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)


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