Hi Franck, Thank you for th patch. On Tuesday 22 Mar 2016 11:52:22 Franck Jullien wrote: > When client request a non existing channel from of_dma_xilinx_xlate > we get a NULL pointer dereferencing. This patch fix this problem. > > Signed-off-by: Franck Jullien <franck.jullien@xxxxxxxxxxxxxxxxxxx> Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > --- > drivers/dma/xilinx/xilinx_vdma.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/drivers/dma/xilinx/xilinx_vdma.c > b/drivers/dma/xilinx/xilinx_vdma.c index 0ee0321..ef67f27 100644 > --- a/drivers/dma/xilinx/xilinx_vdma.c > +++ b/drivers/dma/xilinx/xilinx_vdma.c > @@ -1236,7 +1236,7 @@ static struct dma_chan *of_dma_xilinx_xlate(struct > of_phandle_args *dma_spec, struct xilinx_vdma_device *xdev = > ofdma->of_dma_data; > int chan_id = dma_spec->args[0]; > > - if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE) > + if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE || !xdev->chan[chan_id]) > return NULL; > > return dma_get_slave_channel(&xdev->chan[chan_id]->common); -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
