[PATCH] driver core: allow platform_devices and platform_drivers on custom busses

[Kevin Hilman]

This allows platform_devices and platform_drivers to be registered onto
custom busses that are compatible with the platform_bus.

Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
 drivers/base/platform.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 4d99c8b..2cf55e2 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -241,7 +241,8 @@ int platform_device_add(struct platform_device *pdev)
 	if (!pdev->dev.parent)
 		pdev->dev.parent = &platform_bus;
 
-	pdev->dev.bus = &platform_bus_type;
+	if (!pdev->dev.bus)
+		pdev->dev.bus = &platform_bus_type;
 
 	if (pdev->id != -1)
 		dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
@@ -482,7 +483,8 @@ static void platform_drv_shutdown(struct device *_dev)
  */
 int platform_driver_register(struct platform_driver *drv)
 {
-	drv->driver.bus = &platform_bus_type;
+	if (!drv->driver.bus)
+		drv->driver.bus = &platform_bus_type;
 	if (drv->probe)
 		drv->driver.probe = platform_drv_probe;
 	if (drv->remove)
@@ -539,12 +541,12 @@ 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.p->klist_drivers.k_lock);
+	spin_lock(&drv->driver.bus->p->klist_drivers.k_lock);
 	drv->probe = NULL;
 	if (code == 0 && list_empty(&drv->driver.p->klist_devices.k_list))
 		retval = -ENODEV;
 	drv->driver.probe = platform_drv_probe_fail;
-	spin_unlock(&platform_bus_type.p->klist_drivers.k_lock);
+	spin_unlock(&drv->driver.bus->p->klist_drivers.k_lock);
 
 	if (code != retval)
 		platform_driver_unregister(drv);
-- 
1.7.2.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/