Re: [PATCH] pci: of : fix BUG: unable to handle kernel

From: Murali Karicheri
Date: Wed Mar 11 2015 - 11:28:43 EST

On 03/11/2015 08:49 AM, Russell King - ARM Linux wrote:
On Wed, Mar 11, 2015 at 07:35:45AM -0500, Rob Herring wrote:
On Tue, Mar 10, 2015 at 10:25 AM, Murali Karicheri<m-karicheri2@xxxxxx> wrote:
On some platforms such as that based on x86, ia64 etc, root bus is
created with parent node passed in as NULL to pci_create_root_bus().
On these platforms, the patch series "PCI: get DMA configuration from
parent device" when applied causes kernel crash. So add a check for this
in of_pci_dma_configure()

Wouldn't these arches have OF disabled and call an empty function?
Regardless, we still need this.

Signed-off-by: Murali Karicheri<m-karicheri2@xxxxxx>

I'm assuming Bjorn will apply this.

Acked-by: Rob Herring<robh@xxxxxxxxxx>

It might be an idea to read the subject line...

"fix BUG: unable to handle kernel"

I will fix the subject as "fix BUG: unable to handle kernel NULL pointer" and re-send.



which is meaningless. It needs a much better subject line before it can
be committed.

Murali Karicheri
Linux Kernel, Texas Instruments
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