Hi
Could you review this patch ?
8 days have passed...
thanks,
tomoya
On Tue, Feb 12, 2013 at 11:25 AM, Tomoya MORINAGA <tomoya.r...@gmail.com> wrote:
> pdc_desc_get() is called from pd_prep_slave_sg, and the function is
> called from interrupt context(e.g. Uart driver "pch_uart.c").
> In fact, I saw kernel error message.
> So, GFP_ATOMIC must be used not GFP_NOIO.
>
> Signed-off-by: Tomoya MORINAGA <tomoya.r...@gmail.com>
> ---
> drivers/dma/pch_dma.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
> index 987ab5c..d5cbd44 100644
> --- a/drivers/dma/pch_dma.c
> +++ b/drivers/dma/pch_dma.c
> @@ -476,7 +476,7 @@ static struct pch_dma_desc *pdc_desc_get(struct
> pch_dma_chan *pd_chan)
> dev_dbg(chan2dev(&pd_chan->chan), "scanned %d descriptors\n", i);
>
> if (!ret) {
> - ret = pdc_alloc_desc(&pd_chan->chan, GFP_NOIO);
> + ret = pdc_alloc_desc(&pd_chan->chan, GFP_ATOMIC);
> if (ret) {
> spin_lock(&pd_chan->lock);
> pd_chan->descs_allocated++;
> --
> 1.7.4.4
--
ROHM Co., Ltd.
tomoya
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