linux-kernel - [PATCH 3.14 91/92] driver core: bus: Goto appropriate labels on failure in bus_add

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Message-Id: <20150502190118.379419271@linuxfoundation.org>
Date:	Sat,  2 May 2015 21:03:46 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Junjie Mao <junjie_mao@...h.net>
Subject: [PATCH 3.14 91/92] driver core: bus: Goto appropriate labels on failure in bus_add_device

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Junjie Mao <junjie_mao@...h.net>

commit 1c34203a1496d1849ba978021b878b3447d433c8 upstream.

It is not necessary to call device_remove_groups() when device_add_groups()
fails.

The group added by device_add_groups() should be removed if sysfs_create_link()
fails.

Fixes: fa6fdb33b486 ("driver core: bus_type: add dev_groups")
Signed-off-by: Junjie Mao <junjie_mao@...h.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/base/bus.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -515,11 +515,11 @@ int bus_add_device(struct device *dev)
 			goto out_put;
 		error = device_add_groups(dev, bus->dev_groups);
 		if (error)
-			goto out_groups;
+			goto out_id;
 		error = sysfs_create_link(&bus->p->devices_kset->kobj,
 						&dev->kobj, dev_name(dev));
 		if (error)
-			goto out_id;
+			goto out_groups;
 		error = sysfs_create_link(&dev->kobj,
 				&dev->bus->p->subsys.kobj, "subsystem");
 		if (error)


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