> 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>
Applied, thanks
> > ---
> > 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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