[3/4] I/OAT: fix async_tx.callback checking
authorMaciej Sosnowski <maciej.sosnowski@intel.com>
Fri, 7 Nov 2008 01:46:55 +0000 (01:46 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 10 Nov 2008 23:01:00 +0000 (15:01 -0800)
async_tx.callback should be checked for the first
not the last descriptor in the chain.

Cc: <stable@kernel.org>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/dma/ioat_dma.c

index dbb8bbb83a32c0240faac30522f931d0109d8c01..ecd743f7cc617b9921b7d08e553da0264d8c401c 100644 (file)
@@ -525,7 +525,7 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
        }
 
        hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS;
-       if (new->async_tx.callback) {
+       if (first->async_tx.callback) {
                hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN;
                if (first != new) {
                        /* move callback into to last desc */
@@ -617,7 +617,7 @@ static dma_cookie_t ioat2_tx_submit(struct dma_async_tx_descriptor *tx)
        }
 
        hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_CP_STS;
-       if (new->async_tx.callback) {
+       if (first->async_tx.callback) {
                hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN;
                if (first != new) {
                        /* move callback into to last desc */