Re: Regression - 2.6.24-rc3 - umem nvram card driver oops

From: Ingo Molnar
Date: Tue Dec 04 2007 - 04:37:37 EST



* Neil Brown <neilb@xxxxxxx> wrote:

> ### Diffstat output
> ./drivers/block/umem.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff .prev/drivers/block/umem.c ./drivers/block/umem.c
> --- .prev/drivers/block/umem.c 2007-12-04 11:11:30.000000000 +1100
> +++ ./drivers/block/umem.c 2007-12-04 11:11:42.000000000 +1100
> @@ -484,7 +484,8 @@ static void process_page(unsigned long d
> page->idx++;
> if (page->idx >= bio->bi_vcnt) {
> page->bio = bio->bi_next;
> - page->idx = page->bio->bi_idx;
> + if (page->bio)
> + page->idx = page->bio->bi_idx;
> }
>
> pci_unmap_page(card->dev, desc->data_dma_handle,

btw., if anyone feels so inclined, this file has quite a number of
coding style issues, as per scripts/checkpatch.pl output:

total: 28 errors, 54 warnings, 1221 lines checked

Ingo
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