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Commit ffb3c7a9 authored by Justin Maggard's avatar Justin Maggard Committed by Greg Kroah-Hartman
Browse files

async_pq_val: fix DMA memory leak 



commit c84750906b4818d4929fbf73a4ae6c113b94f52b upstream.

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>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent be90a09b

crypto/async_tx/async_pq.c

+4 −4
Original line number Diff line number Diff line
@@ -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);