driver core: remove fields from struct bus_type

struct bus_type is static everywhere in the kernel.  This moves the
kobject in the structure out of it, and a bunch of other private only to
the driver core fields are now moved to a private structure.  This lets
us dynamically create the backing kobject properly and gives us the
chance to be able to document to users exactly how to use the struct
bus_type as there are no fields they can improperly access.

Thanks to Kay for the build fixes on this patch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index fb5609241482..d56a05f94f67 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -497,12 +497,12 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
          * if the probe was successful, and make sure any forced probes of
          * new devices fail.
          */
-        spin_lock(&platform_bus_type.klist_drivers.k_lock);
+        spin_lock(&platform_bus_type.p->klist_drivers.k_lock);
         drv->probe = NULL;
         if (code == 0 && list_empty(&drv->driver.klist_devices.k_list))
                 retval = -ENODEV;
         drv->driver.probe = platform_drv_probe_fail;
-        spin_unlock(&platform_bus_type.klist_drivers.k_lock);
+        spin_unlock(&platform_bus_type.p->klist_drivers.k_lock);
 
         if (code != retval)
                 platform_driver_unregister(drv);