[PATCH] drm: fix i_mapping and f_mapping initialization in drm_open in error path

[Ilija Hadzic]

Thanks for testing. Other issues are probably unrelated, so I'll send the
last version of the patch to Dave.

-- Ilija

On Tue, Apr 2, 2013 at 6:36 AM, Marco Munderloh <munderl at tnt.uni-hannover.de
> wrote:

> Attached is a v2 of the patch, for reference. I would appreciate if the
>> original reporter or you tested it in lieu of your proposed patch and let
>> me know if it fixes your
>> issue.
>>
>
> The patch works for me. echo 3 > /proc/sys/vm/drop_caches as well as rmmod
> radeon do not end up in a crash anymore. However, I have still no clue why
> one of these makes drm_open to fail. On rmmod radeon I get the following
> log messages. If don't know if the 'unpin not necessary' has anything to do
> with it.
>
> [drm] radeon: finishing device.
> radeon 0000:01:00.0: ffff88024e526c00 unpin not necessary
> radeon 0000:01:00.0: ffff88024f2f6000 unpin not necessary
> radeon 0000:01:00.0: ffff88024f2f6000 unpin not necessary
> [TTM] Finalizing pool allocator
> [TTM] Finalizing DMA pool allocator
> [TTM] Zone  kernel: Used memory at exit: 0 kiB
> [TTM] Zone   dma32: Used memory at exit: 0 kiB
> [drm] radeon: ttm finalized
> vga_switcheroo: disabled
> [drm] Module unloaded
>
> By the way, sometimes my r8169 ethernet controller does not survive
> suspend/hibernation (does not detect link). rmmod/modprobe helps. I don't
> know if this is related.
>
>
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