[ adding Vinod ]
On Tue, Oct 4, 2016 at 1:17 PM, Justin Maggard <jmaggard10@xxxxxxxxx> wrote:
> Add missing dmaengine_unmap_put(), so we don't OOM during RAID6 sync.
>
> Fixes: 1786b943dad0 ("async_pq_val: convert to dmaengine_unmap_data")
> Signed-off-by: Justin Maggard <jmaggard@xxxxxxxxxxx>
Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
> ---
> crypto/async_tx/async_pq.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
> index 08b3ac6..f83de99 100644
> --- a/crypto/async_tx/async_pq.c
> +++ b/crypto/async_tx/async_pq.c
> @@ -368,8 +368,6 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks,
>
> dma_set_unmap(tx, unmap);
> async_tx_submit(chan, tx, submit);
> -
> - return tx;
> } else {
> struct page *p_src = P(blocks, disks);
> struct page *q_src = Q(blocks, disks);
> @@ -424,9 +422,11 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks,
> submit->cb_param = cb_param_orig;
> submit->flags = flags_orig;
> async_tx_sync_epilog(submit);
> -
> - return NULL;
> + tx = NULL;
> }
> + dmaengine_unmap_put(unmap);
> +
> + return tx;
> }
> EXPORT_SYMBOL_GPL(async_syndrome_val);
>
> --
> 2.10.1
>
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