On Wed, Jan 20, 2010 at 11:48, Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:
> On Wed, Jan 20, 2010 at 12:08 PM, <monstr@xxxxxxxxx> wrote:
>> From: Michal Simek <monstr@xxxxxxxxx>
>>
>> Check that dma_ops are initialized correctly. Without this
>> checking you get kernel fault and you don't know where the problem is.
>
> Oh, yes you do. PC will be of some small value.
And the backtrace will tell you where to look...
>> + BUG_ON(!ops);
>> BUG_ON(!valid_dma_direction(dir));
>> addr = ops->map_page(dev, virt_to_page(ptr),
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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