diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2008-03-04 19:40:09 +0000 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-03-24 11:47:33 -0700 |
| commit | f2336eeb199d3ed113e6d01c8020ea8919dd85c9 (patch) | |
| tree | dcdfeec297143ef6ecb6fa1cd405bfa2fa1ba682 | |
| parent | 40f3601686b66ffa7c2cab2bbdff5ec0fc52aa43 (diff) | |
ioat: fix 'ack' handling, driver must ensure that 'ack' is zero
commit: 6497dcffe07b7c3d863f9899280c4f6eae999161
Initialize 'ack' to zero in case the descriptor has been recycled.
Prevents "kernel BUG at crypto/async_tx/async_xor.c:185!"
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
[chrisw@sous-sol.org: backport to 2.6.24.3]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/dma/ioat_dma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 45e7b4666c7..8cf542b2aed 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -726,6 +726,7 @@ static struct dma_async_tx_descriptor *ioat1_dma_prep_memcpy( if (new) { new->len = len; + new->async_tx.ack = 0; return &new->async_tx; } else return NULL; @@ -749,6 +750,7 @@ static struct dma_async_tx_descriptor *ioat2_dma_prep_memcpy( if (new) { new->len = len; + new->async_tx.ack = 0; return &new->async_tx; } else return NULL; |