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author | Justin Maggard <jmaggard10@gmail.com> | 2016-10-04 13:17:58 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-22 12:06:48 +0200 |
commit | 2ea1e5b248e29791ec72a5cf9eb6b28fe315ee76 (patch) | |
tree | 914251c9d297d0c85d7992d1da3119b7433afb2a | |
parent | 41466db87ee886e2410aac25b84849838a8b2ef0 (diff) | |
download | linux-stable-2ea1e5b248e29791ec72a5cf9eb6b28fe315ee76.tar.gz linux-stable-2ea1e5b248e29791ec72a5cf9eb6b28fe315ee76.tar.bz2 linux-stable-2ea1e5b248e29791ec72a5cf9eb6b28fe315ee76.zip |
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>
-rw-r--r-- | crypto/async_tx/async_pq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c index 08b3ac68952b..f83de99d7d71 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); |