[PATCH v2] dt: platform driver: Fill the resources before probe and defer if needed
Russell King - ARM Linux
linux at arm.linux.org.uk
Sat Mar 8 06:59:48 EST 2014
On Sat, Mar 08, 2014 at 07:37:58AM +0000, Grant Likely wrote:
> I believe we already talked about the above test. This function must
> only process devices created by of_platform_populate(). Merely checking
> the of_node pointer is not a sufficient test because there are other
> paths in the kernel for creating platform_devices that might get a node
> pointer attached to it.
There definitely are: there are a number of platform device drivers
which create a new platform device structure, and copy the of_node
pointer across.
However, that's really sick code, and can result in the platform device
driver probing the device it just created... this practise should be
outlawed.
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