On 2 January 2018 at 19:44, Ray Jui <ray.jui@xxxxxxxxxxxx> wrote:
> Can you please give the following patch a try to see if that fixes the
> issue? Thanks.
It does, thank you!
> From f91de124bc8fb5645d7dbbfd68a9a68617955749 Mon Sep 17 00:00:00 2001
> From: Ray Jui <ray.jui@xxxxxxxxxxxx>
> Date: Tue, 2 Jan 2018 10:36:03 -0800
> Subject: [PATCH] PCI: iproc: Fix NULL pointer dereference for BCMA
>
> With the inbound DMA mapping supported added, the iProc PCIe driver
> parses DT property "dma-ranges" through call to
> "of_pci_dma_range_parser_init". In the case of BCMA, this results in a
> NULL pointer deference due to a missing of_node.
>
> Fix this by adding a guard in pcie-iproc-platform.c to only enable the
> inbound DMA mapping logic when DT property "dma-ranges" is present
>
> fixes: dd9d4e7498de3 ("PCI: iproc: Add inbound DMA mapping support")
> Signed-off-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
Please add:
Tested-by: Rafał Miłecki <rafal@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 4.10+
