From: Guenter Roeck <linux@xxxxxxxxxxxx>
Date: Sun, 25 Oct 2015 17:26:38 -0700
> Since commit 61e82530d80f ("of/platform: Point to struct device from device
> node"), the 'device' pointer in devicetree nodes for platform devices must
> be set for of_find_device_by_node to succeed. This is not the case unless
> the platform device was created using of_platform_device_create(), which
> is not always the case. This causes all sparc images to crash with "Unable
> to handle NULL pointer reference" in functions such as iommu_init(), which
> don't expect of_find_device_by_node() to return NULL.
>
> Cc: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> This patch depends on the patch causing the problem (which can not be easily
> reverted). It should probably go through the same tree as that patch,
> or the patches should be merged.
Indeed, please merge this into the tree that added the change in
question:
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
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