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[3/4] I/OAT: fix async_tx.callback checking
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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>
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Maciej Sosnowski authored and David S. Miller committed Nov 10, 2008
1 parent c2c0b4c commit 12ccea2
Showing 1 changed file with 2 additions and 2 deletions.
4 changes: 2 additions & 2 deletions drivers/dma/ioat_dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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 */
Expand Down Expand Up @@ -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 */
Expand Down

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