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

From: Rob Herring
Date: Wed Mar 11 2015 - 11:59:44 EST

On Wed, Mar 11, 2015 at 10:28 AM, Murali Karicheri <m-karicheri2@xxxxxx> wrote:
> 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"
> Russell,
> I will fix the subject as "fix BUG: unable to handle kernel NULL pointer"
> and re-send.

Russell's point is the subject applies to every fix for a BUG.
Something like "of/pci: fix of_pci_dma_configure parent ptr NULL

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at