From f70fa6296c2ec8f541f0a9b406ccc2d9d127d639 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 5 Oct 2006 17:03:24 -0400 Subject: Driver core: Don't ignore error returns from probing This patch (as797) fixes device_add() in the driver core. It needs to pay attention when the driver for a new device reports an error. At the same time, since bus_remove_device() undoes the effects of both bus_add_device() and bus_attach_device(), it needs to check whether the bus_attach_device step failed. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/base/core.c') diff --git a/drivers/base/core.c b/drivers/base/core.c index 41f3dca55cd0..68ad11af22b4 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -479,7 +479,8 @@ int device_add(struct device *dev) if ((error = bus_add_device(dev))) goto BusError; kobject_uevent(&dev->kobj, KOBJ_ADD); - bus_attach_device(dev); + if ((error = bus_attach_device(dev))) + goto AttachError; if (parent) klist_add_tail(&dev->knode_parent, &parent->klist_children); @@ -498,6 +499,8 @@ int device_add(struct device *dev) kfree(class_name); put_device(dev); return error; + AttachError: + bus_remove_device(dev); BusError: device_pm_remove(dev); PMError: -- cgit v1.2.3