linux-kernel - [07/12] driver core fixes: bus_add

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Message-ID: <20060913183851.17a7ead6@gondolin.boeblingen.de.ibm.com>
Date:	Wed, 13 Sep 2006 18:38:51 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	Greg K-H <greg@...ah.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [07/12] driver core fixes: bus_add_device() cleanup on error

From: Cornelia Huck <cornelia.huck@...ibm.com>

Correct cleanup in the error path of bus_add_device().

Signed-off-by: Cornelia Huck <cornelia.huck@...ibm.com>

 bus.c |   18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

--- linux-2.6.18-rc6/drivers/base/bus.c	2006-09-12 17:18:25.000000000 +0200
+++ linux-2.6.18-rc6+CH/drivers/base/bus.c	2006-09-12 17:17:47.000000000 +0200
@@ -372,18 +372,28 @@ int bus_add_device(struct device * dev)
 		pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id);
 		error = device_add_attrs(bus, dev);
 		if (error)
-			goto out;
+			goto out_put;
 		error = sysfs_create_link(&bus->devices.kobj,
 						&dev->kobj, dev->bus_id);
 		if (error)
-			goto out;
+			goto out_id;
 		error = sysfs_create_link(&dev->kobj,
 				&dev->bus->subsys.kset.kobj, "subsystem");
 		if (error)
-			goto out;
+			goto out_subsys;
 		error = sysfs_create_link(&dev->kobj,
 				&dev->bus->subsys.kset.kobj, "bus");
-	}
+		if (!error)
+			goto out;
+	} else
+		goto out;
+	sysfs_remove_link(&dev->kobj, "subsystem");
+out_subsys:
+	sysfs_remove_link(&bus->devices.kobj, dev->bus_id);
+out_id:
+	device_remove_attrs(bus, dev);
+out_put:
+	put_bus(dev->bus);
 out:
 	return error;
 }
-
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