Re: BUG: NULL pointer dereference at 00000000 -- IP: [<f8e783d5>]:b43:b43_dma_mapping_error+0x16/0x155

[FUJITA Tomonori]

On Tue, 10 Jun 2008 16:50:26 +0200
Michael Buesch <mb@xxxxxxxxx> wrote:

> On Tuesday 10 June 2008 16:42:41 Vegard Nossum wrote:
> > This change comes from
> > 
> > commit 353c409463ecba63c3a41a992d3f5fba935eada9
> > Author: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
> > Date:   Fri May 23 19:02:30 2008 +0000
> 
> 
> Ok, FUJITA Tomonori, please make sure a patch like the following goes
> into the same trees that you submitted commit 353c409 to.
> Also make sure to check b43legacy. I _guess_ you might have added
> the same bug there.

Ah, sorry about the bug.

>From a quick look, mainline needs the same fix too?

b43_dma_mapping_error calls unmap_descbuffer() on the failure, which
assumes that ring->dev is set up properly.
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