drivers: Remove explicit invocations of mmiowb()

[linux.git] / drivers / staging / comedi / drivers / ni_pcidio.c

diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 4bdef87d5dd733bc6de4e3c2e798a3dc9c706489..8f3864799c1999215daba274697b17c3edb4adad 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -310,7 +310,6 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
        writeb(primary_DMAChannel_bits(devpriv->di_mite_chan->channel) |
               secondary_DMAChannel_bits(devpriv->di_mite_chan->channel),
               dev->mmio + DMA_LINE_CONTROL_GROUP1);
-       mmiowb();
        spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
        return 0;
 }
@@ -327,7 +326,6 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
                writeb(primary_DMAChannel_bits(0) |
                       secondary_DMAChannel_bits(0),
                       dev->mmio + DMA_LINE_CONTROL_GROUP1);
-               mmiowb();
        }
        spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }