From: Maciej Sosnowski Date: Tue, 11 Nov 2008 17:50:05 +0000 (+0000) Subject: I/OAT: fix async_tx.callback checking X-Git-Tag: v2.6.27.6~22 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d2edcdc5ad15bc5565e1e968cc43ed90c5c0a9e4;p=thirdparty%2Fkernel%2Fstable.git I/OAT: fix async_tx.callback checking commit 12ccea24e309d815d058cdc6ee8bf2c4b85f0c5f upstream async_tx.callback should be checked for the first not the last descriptor in the chain. Signed-off-by: Maciej Sosnowski Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index b762db2e8073f..3f4db5460d1aa 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -519,7 +519,7 @@ 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 */ @@ -611,7 +611,7 @@ 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 */