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authorCornelia Huck <cornelia.huck@de.ibm.com>2007-02-05 16:15:26 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2007-04-27 10:57:29 -0700
commitc6a46696f97ff260a4ecce5e287f8de4b9d7fe14 (patch)
tree335de50c9868cd575f535677e430677d33cbaaa1 /drivers/base/dd.c
parenteed40d3ad2ba652c08422d62a5ff6f62ac0be16d (diff)
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driver core: don't fail attaching the device if it cannot be bound
Don't fail bus_attach_device() if the device cannot be bound. If dev->driver has been specified, reset it to NULL if device_bind_driver() failed and add the device as an unbound device. As a result, bus_attach_device() now cannot fail, and we can remove some checking from device_add(). Also remove an unneeded check in bus_rescan_devices_helper(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/dd.c')
-rw-r--r--drivers/base/dd.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 616b4bb..18dba8e 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -232,7 +232,7 @@ static int device_probe_drivers(void *data)
*
* Returns 1 if the device was bound to a driver;
* 0 if no matching device was found or multithreaded probing is done;
- * error code otherwise.
+ * -ENODEV if the device is not registered.
*
* When called for a USB interface, @dev->parent->sem must be held.
*/
@@ -246,6 +246,10 @@ int device_attach(struct device * dev)
ret = device_bind_driver(dev);
if (ret == 0)
ret = 1;
+ else {
+ dev->driver = NULL;
+ ret = 0;
+ }
} else {
if (dev->bus->multithread_probe)
probe_task = kthread_run(device_probe_drivers, dev,
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