linux-kernel - [PATCH] driver core: move uevent call to driver

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Date:	Mon, 2 Jul 2012 19:08:15 +0200 (CEST)
From:	Sebastian Ott <sebott@...ux.vnet.ibm.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] driver core: move uevent call to driver_register


Device driver attribute groups are created after userspace is notified
via an add event. Fix this by moving the kobject_uevent call to
driver_register after the attribute groups are added.

Signed-off-by: Sebastian Ott <sebott@...ux.vnet.ibm.com>
---
 drivers/base/bus.c    |    1 -
 drivers/base/driver.c |    3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -743,7 +743,6 @@ int bus_add_driver(struct device_driver 
 		}
 	}
 
-	kobject_uevent(&priv->kobj, KOBJ_ADD);
 	return 0;
 
 out_unregister:
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -187,6 +187,9 @@ int driver_register(struct device_driver
 	ret = driver_add_groups(drv, drv->groups);
 	if (ret)
 		bus_remove_driver(drv);
+
+	kobject_uevent(&drv->p->kobj, KOBJ_ADD);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(driver_register);

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