Re: [PATCH] device core: fix dma_mask handling in platform_device_register_full

[Greg KH]

On Wed, Mar 11, 2020 at 05:07:10PM +0100, Christoph Hellwig wrote:
> Ever since the generic platform device code started allocating DMA masks
> itself the code to allocate and leak a private DMA mask in
> platform_device_register_full has been superflous.  More so the fact that
> it unconditionally frees the DMA mask allocation in the failure path
> can lead to slab corruption if the function fails later on for a device
> where it didn't allocate the mask.  Just remove the offending code.
> 
> Fixes: cdfee5623290 ("driver core: initialize a default DMA mask for platform device")
> Reported-by: Artem S. Tashkinov <aros@xxxxxxx>
> Tested-by: Artem S. Tashkinov <aros@xxxxxxx>

No s-o-b from you?  :(

I can take this, or Linus, you can take this now if you want to as well:

Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>