[PATCH v3.1 4/4] of/platform: Use platform_device interface

[Ricardo Ribalda Delgado]

of_platform_device_create_pdata() was using of_device_add() to create
the devices, but of_platform_device_destroy was using
platform_device_unregister() to free them.

of_device_add(), do not call insert_resource(), which initializes the
parent field of the resource structure, needed by release_resource(),
called by of_platform_device_destroy(). This leads to a NULL pointer
deference.

Instead of fixing the NULL pointer deference, what could hide other bugs,
this patch, replaces of_device_add() with platform_device_data().

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---

v3.1 Fix comments by Rob Herring, thanks!

 drivers/of/platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index a01f57c..f011f57 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -183,8 +183,9 @@ static struct platform_device *of_platform_device_create_pdata(
 	dev->dev.bus = &platform_bus_type;
 	dev->dev.platform_data = platform_data;
 	of_dma_configure(&dev->dev, dev->dev.of_node);
+	dev->name = dev_name(&dev->dev);
 
-	if (of_device_add(dev) != 0) {
+	if (platform_device_add(dev) != 0) {
 		of_dma_deconfigure(&dev->dev);
 		platform_device_put(dev);
 		goto err_clear_flag;
-- 
2.1.4

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