[PATCH] driver core: fix error handling in bus_add_device
The error handling in bus_add_device() and device_attach() is simply
non-existing. This patch propagates any error from device_attach to
the upper layers to allow for a proper recovery.
From: Hannes Reinecke <hare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index eab2030..6db3a78 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -119,7 +119,8 @@
* driver_probe_device() for each pair. If a compatible
* pair is found, break out and return.
*
- * Returns 1 if the device was bound to a driver; 0 otherwise.
+ * Returns 1 if the device was bound to a driver;
+ * 0 if no matching device was found; error code otherwise.
*/
int device_attach(struct device * dev)
{