On Mon, May 13, 2013 at 06:58:34PM +1100, Tomoya MORINAGA 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. > > commitID:5c1ef59168c485318e40ba485c1eba57d81d0faa > Kernel: 3.0 3.2 3.4 3.9
Thanks, I'm queuing it for the 3.5 kernel as well. Cheers, -- Luis > > Cc: [email protected] Signed-off-by: Tomoya MORINAGA > <[email protected]> Signed-off-by: Vinod Koul > <[email protected]> --- drivers/dma/pch_dma.c | 2 +- 1 file > changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c > index d01faeb..ce3dc3e 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++; > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe stable" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
