Re: BUG: NULL pointer dereference at 00000000 -- IP: [] :b43:b43_dma_mapping_error+0x16/0x155

Miles Lane
2008-06-11T05:57:41Z

> The line that fails is
>
> if (unlikely(dma_mapping_error(ring->dev->dev->dma_dev, addr)))
>
> The value at 0x58(%eax) is zero, which corresponds to the "struct b43_wldev
> *dev" line in struct b43_dmaring. In other words, ring->dev is NULL, which
> causes the error. I'll leave it to FUJITA Tomonori to figure out why.

Thanks all,

I might have time in the morning to test one more patch, otherwise I
will be back in about three weeks.

Best wishes,

Miles