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authorJustin Maggard <jmaggard10@gmail.com>2016-10-04 13:17:58 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-22 12:26:55 +0200
commitffb3c7a99a15a7644c2fc632d6474a1e4c0c800c (patch)
tree6ea4dd0f250a62ba9854e9d9f55fc1c5b3b3f1c9 /crypto
parentbe90a09bd915e417feae76d9a72c2a37dc5cf1b7 (diff)
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async_pq_val: fix DMA memory leak
commit c84750906b4818d4929fbf73a4ae6c113b94f52b upstream. 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@netgear.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/async_tx/async_pq.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index c0748bbd4c08..84f8d4d8b6bc 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);