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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-10-05 17:03:24 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-10-18 12:49:55 -0700 |
| commit | f70fa6296c2ec8f541f0a9b406ccc2d9d127d639 (patch) | |
| tree | f9fd9bbb13a62683c6b41612cfb34fa3894f8676 /drivers/base/core.c | |
| parent | 952ab431cd36c7ab573f685af8679c3677cbdc29 (diff) | |
| download | lwn-f70fa6296c2ec8f541f0a9b406ccc2d9d127d639.tar.gz lwn-f70fa6296c2ec8f541f0a9b406ccc2d9d127d639.zip | |
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 <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 5 |
1 files changed, 4 insertions, 1 deletions
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: |