Commit c8475090 authored by Justin Maggard's avatar Justin Maggard Committed by Vinod Koul

async_pq_val: fix DMA memory leak

Add missing dmaengine_unmap_put(), so we don't OOM during RAID6 sync.

Fixes: 1786b943 ("async_pq_val: convert to dmaengine_unmap_data")
Signed-off-by: default avatarJustin Maggard <jmaggard@netgear.com>
Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 96622bde
......@@ -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);
......
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